feed.rss

<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content"><channel><title>CodeCompletion.io</title><description>We are a group of developers and educators specializing in Apple Platform development, here to try something new.

New content coming out every week.</description><link>https://codecompletion.io</link><language>en</language><lastBuildDate>Thu, 23 Dec 2021 19:23:44 +0000</lastBuildDate><pubDate>Thu, 23 Dec 2021 19:23:44 +0000</pubDate><ttl>250</ttl><atom:link href="https://codecompletion.io/feed.rss" rel="self" type="application/rss+xml"/><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-61</guid><title>Episode 61: Worth Learning A Little Bit About</title><description>We introduce web development for iOS developers!</description><link>https://codecompletion.io/episodes/2021/ep-61</link><pubDate>Wed, 22 Dec 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 61! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Web Development:<ul><li><a href="https://www.destroyallsoftware.com/talks/wat">wat</a></li><li><a href="https://www.macstadium.com/colo#products">MacStadium Collocation</a></li><li><a href="http://vapor.codes">Vapor</a></li><li><a href="https://www.w3schools.com">W3Schools</a></li></ul></li></ul>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-60</guid><title>Episode 60: Basically the Wild West</title><description>We discuss NFTs, Blockchains, and Cryptocurrencies.</description><link>https://codecompletion.io/episodes/2021/ep-60</link><pubDate>Wed, 15 Dec 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 60! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://c-command.com/dropdmg/">DropDMG</a> by <a href="https://twitter.com/mjtsai">Michael Tsai</a></li></ul></li></ul><ul><li>NFTs, Blockchains, and Cryptocurrencies<ul><li><a href="https://www.wired.com/story/squid-game-coin-crypto-scam/">Squidcoin Scam</a></li><li><a href="https://www.youtube.com/c/Coffeezilla">Coffeezilla on YouTube</a></li><li><a href="https://www.lootproject.com/">Loot Project</a></li><li><a href="https://www.youtube.com/watch?v=IxXaizglscw">Steve Mould’s Water Computer</a></li><li><a href="https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/">Proof of Stake</a></li></ul></li></ul><ul><li>Mini Review Corner:<ul><li><a href="https://playbackbone.com/products/backbone-one/">Backbone One</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make sure both load methods run concurrently?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make sure both load methods run concurrently?</span>
<span class="splashkeyword">func</span> loadItem(<span class="splashkeyword">_</span> id: <span class="splashtype">UUID</span>) <span class="splashcall">async</span> {
    <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
    <span class="splashkeyword">let</span> metadata = await <span class="splashcall">loadMetadata</span>(id)
    
    <span class="splashcall">presentItem</span>(id, image: image, metadata: metadata)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Cryptocurrencies!</p><ol><li>One of the first cryptocurrencies, Litecoin was created in 2011 based on Scrypt out of concern that GPU-based mining was too high a barrier to entry.</li><li>Zcash, founded by Zooko Wilcox, is the first open, permission less financial system employing zero-knowledge security, and employed a “ceremony” to generate the system’s private key.</li><li>Titcoin was created in 2014 as the first cryptocurrency to be nominated for a major adult industry award, and featured greatly improved transaction speeds over Bitcoin.</li><li>iCANhaz was an ill-fated cryptocurrency founded by Burger King in 2018 that could be earned by purchasing cheeseburgers, though most ended up lost since wallets containing the coin were printed on wrappers themselves.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-59</guid><title>Episode 59: Premature Abstraction Is The Actual Root Of All Evil</title><description>We discuss when it's appropriate to abstract your code.</description><link>https://codecompletion.io/episodes/2021/ep-59</link><pubDate>Tue, 7 Dec 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 59! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/app/id1494942612#?platform=iphone">Morpho</a> by <a href="https://twitter.com/thinktapwork">Jeremy and Casey</a></li></ul></li></ul><ul><li>Abstraction while coding<ul><li><a href="https://www.youtube.com/channel/UCS0N5baNlQWJCUrhCEo8WlA">Ben Eater</a></li><li><a href="https://www.youtube.com/watch?v=IxXaizglscw">Steve Mould’s Water Computer</a></li></ul></li></ul><ul><li>Mini Review Corner:<ul><li><a href="https://www.amazon.com/Nintendo-Game-Watch-not-machine-specific/dp/B097B1ZJ5T?ref_=ast_sto_dp">Legend of Zelda Game and Watch</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make all calls to `loadImage()` run concurrently, and return images in the same order?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make all calls to loadImage() run concurrently,
//   and return images in the same order?</span>
<span class="splashkeyword">func</span> loadImages(<span class="splashkeyword">_</span> ids: [<span class="splashtype">UUID</span>]) <span class="splashcall">async</span> {
    <span class="splashkeyword">var</span> images: [<span class="splashtype">Image</span>] = []
    <span class="splashkeyword">for</span> id <span class="splashkeyword">in</span> ids {
        <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
        images.<span class="splashcall">append</span>(image)
    }
    
    <span class="splashkeyword">return</span> images
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-58</guid><title>Episode 58: The Nintendo Ninjas, They Get Everyone</title><description>We discuss some differences between game development and app development.</description><link>https://codecompletion.io/episodes/2021/ep-58</link><pubDate>Tue, 30 Nov 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 58! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://yaacoub.github.io/apps/christmas-guide/">Christmas Guide</a> by <a href="https://twitter.com/yaapete">Peter Yaacoub</a></li></ul></li></ul><ul><li>Tools for Game development<ul><li><a href="https://developer.apple.com/documentation/spritekit/">SpriteKit</a></li><li><a href="https://developer.apple.com/documentation/scenekit/">SceneKit</a></li><li><a href="https://developer.apple.com/documentation/arkit/">ARKit</a></li><li><a href="https://unity.com">Unity</a></li><li><a href="https://www.yoyogames.com/en/gamemaker">GameMaker Studio</a></li><li><a href="https://play.date/dev/">Pulp for playdate</a></li></ul></li></ul><ul><li>Games:<ul><li><a href="https://undertale.com">Undertale</a></li><li><a href="https://frenzic.com">Frenzic Overtime</a></li><li><a href="https://www.oceanhorn.com">Oceanhorn</a></li><li><a href="https://www.youtube.com/watch?v=y-_qlaywKBs">Geometry Wars</a></li><li><a href="https://mochidev.com/apps/sluzzuls">SLUZZULS</a></li><li><a href="https://www.youtube.com/watch?v=AUci0fV7FWQ">The Legend of Zelda, Ocarina of Time Beta Showcase by ZFG</a></li><li><a href="https://www.youtube.com/watch?v=gcUBEWmIJkk">Corridor Crew Bob Ross Challenge</a></li></ul></li></ul><ul><li>Mini Review Corner: COVID-19 Booster</li><li>Commented Out:<ul><li><a href="https://www.amazon.com/Nintendo-Game-Watch-not-machine-specific/dp/B097B1ZJ5T?ref_=ast_sto_dp">Game and Watch Zelda</a></li><li><a href="https://www.amazon.com/Game-Watch-Super-Mario-Nintendo-switch/dp/B08GZ3DRLW?ref_=ast_sto_dp">Game and Watch Mario</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make all calls to `loadImage()` run concurrently, and return images in the same order?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make all calls to loadImage() run concurrently,
//   and return images in the same order?</span>
<span class="splashkeyword">func</span> loadImages(<span class="splashkeyword">_</span> ids: [<span class="splashtype">UUID</span>]) <span class="splashcall">async</span> {
    <span class="splashkeyword">var</span> images: [<span class="splashtype">Image</span>] = []
    <span class="splashkeyword">for</span> id <span class="splashkeyword">in</span> ids {
        <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
        images.<span class="splashcall">append</span>(image)
    }
    
    <span class="splashkeyword">return</span> images
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-57</guid><title>Episode 57: Teeps For Developers</title><description>We discuss how to file a good bug report.</description><link>https://codecompletion.io/episodes/2021/ep-57</link><pubDate>Tue, 23 Nov 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 57! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://noteifyapp.com/command-tab-plus/">Command-Tab Plus</a> by <a href="https://twitter.com/gerasim_sergey">Gerasim Sergey</a></li></ul></li></ul><ul><li>Bug tracking, and how to file good bugs:<ul><li><a href="https://developer.apple.com/bug-reporting/">Feedback Assistant</a></li><li><a href="https://www.theregister.com/2016/03/23/npm_left_pad_chaos/">left-pad</a></li><li><a href="https://developer.apple.com/tech-talks/">Tech Talks</a></li><li><a href="https://mobile.twitter.com/Teekachu1/status/1461410136451436547">Ting Becker on Twitter</a></li></ul></li></ul><ul><li>Mini Review Corner<ul><li><a href="https://eshop.macsales.com/shop/owc-thunderbolt-dock">OWC Thunderbolt Dock</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make sure both load methods run concurrently?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make sure both load methods run concurrently?</span>
<span class="splashkeyword">func</span> loadItem(<span class="splashkeyword">_</span> id: <span class="splashtype">UUID</span>) <span class="splashcall">async</span> {
    <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
    <span class="splashkeyword">let</span> metadata = await <span class="splashcall">loadMetadata</span>(id)
    
    <span class="splashcall">presentItem</span>(id, image: image, metadata: metadata)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Apple Radar!</p><ol><li>The internal Apple Radar app for iOS comes with a sticker pack, allowing Apple engineers to communicate bug statuses in style.</li><li>The mascot for Apple Radar is a purple ant eater named Fixie, so inspired because the engineer’s daughter was doing a report on them at the time.</li><li>Although the full app was never available to the public, a separate tool called Bug Reporter could be used to file radars, though it was made unavailable in 2019.</li><li>It wasn’t until after the iPhone was released that Tim Burks decided to create Open Radar in 2008 to make sharing and duplicating Radars easier for developers.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Fernando and his new book: <a href="https://fromjuniortosenior.gumroad.com/l/the_missing_onboarding">The Junior Dev’s Onboarding Guide</a>. Go to <a href="https://fromjuniortosenior.gumroad.com/l/the_missing_onboarding">https://fromjuniortosenior.gumroad.com/l/the<em>missing</em>onboarding</a> today to learn more!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-56</guid><title>Episode 56: Real Artists Ship, So Instead We Made a Podcast</title><description>We discuss whether it is better to ship, or better to take your time perfecting your craft.</description><link>https://codecompletion.io/episodes/2021/ep-56</link><pubDate>Wed, 17 Nov 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 56! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/mitynote/id1465314505">Mitynote</a> by <a href="https://twitter.com/austboston">Austin Blake</a></li></ul></li></ul><ul><li>Better to Ship, or Better to Perfect<ul><li>Open Sourcing Ideas</li><li>Polishing Design Skills</li><li>Iterating as much as you can to improve</li></ul></li></ul><ul><li>Mini Review Corner<ul><li><a href="https://www.caldigit.com/thunderbolt-4-element-hub/">CalDigit Element Hub</a></li></ul></li></ul><ul><li>Commented Out: Adventures in Async Sequences<ul><li><a href="https://github.com/mochidev/Bytes">Bytes</a></li><li><a href="https://github.com/mochidev/URLSessionBackport">URLSessionBackport</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make sure both load methods run concurrently?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make sure both load methods run concurrently?</span>
<span class="splashkeyword">func</span> loadItem(<span class="splashkeyword">_</span> id: <span class="splashtype">UUID</span>) <span class="splashcall">async</span> {
    <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
    <span class="splashkeyword">let</span> metadata = await <span class="splashcall">loadMetadata</span>(id)
    
    <span class="splashcall">presentItem</span>(id, image: image, metadata: metadata)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-55</guid><title>Episode 55: Faster Than a Car</title><description>We review the new MacBook Pros, and discuss how the lack of premature optimization may have been more evil after all…</description><link>https://codecompletion.io/episodes/2021/ep-55</link><pubDate>Tue, 9 Nov 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 55! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/kwayet/id1545093715">Kwayet</a> by <a href="https://twitter.com/seun_eagle">Seun Adeyemi</a></li></ul></li></ul><ul><li>MacBook Pro Review<ul><li><a href="https://twitter.com/softwarejameson/status/1455971162060697613">Jameson on Twitter</a></li><li><a href="https://www.youtube.com/watch?v=rr2XfL_df3o">MKBHD’s Review</a></li><li>Benchmark results</li><li><a href="https://developer.blender.org/D13109">Blender’s Metal Updates on Cycles Renderer</a></li><li>What’s next for the M1 family of chips</li></ul></li></ul><ul><li>You should actually prematurely optimize when you can.<ul><li>“You should be the slowest factor”</li><li>Older hardware is often left behind</li><li><a href="https://twitter.com/nicklockwood/status/1456191543027671045">Nick Lockwood on Twitter</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make sure both load methods run concurrently?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make sure both load methods run concurrently?</span>
<span class="splashkeyword">func</span> loadItem(<span class="splashkeyword">_</span> id: <span class="splashtype">UUID</span>) <span class="splashcall">async</span> {
    <span class="splashkeyword">let</span> image = await <span class="splashcall">loadImage</span>(id)
    <span class="splashkeyword">let</span> metadata = await <span class="splashcall">loadMetadata</span>(id)
    
    <span class="splashcall">presentItem</span>(id, image: image, metadata: metadata)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-54</guid><title>Episode 54: You Are Such a DoIt</title><description>We discuss what makes a great Mac app, and what doesn't…</description><link>https://codecompletion.io/episodes/2021/ep-54</link><pubDate>Tue, 2 Nov 2021 17:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 54! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/app/id1330097506#?platform=iphone">Huh?</a> by <a href="https://twitter.com/yaapete">Peter Yaacoub</a></li></ul></li></ul><ul><li>What makes a great Mac app?<ul><li>Menus and key commands</li><li>Building on positive experiences</li><li>Windowing</li><li>Dogfooding</li><li>Consistent functionality</li><li>Losing UI Knowledge and the Human Interface Guidelines<ul><li><a href="https://mjtsai.com/blog/2021/10/15/old-apple-human-interface-guidelines/">Older HIGs</a></li></ul></li></ul></li></ul><ul><li>Undo, and <a href="https://apple.stackexchange.com/questions/189327/old-versions-of-the-os-x-human-interface-guidelines">“Forgiveness”</a><ul><li>Contextual Menus</li></ul></li></ul><ul><li>The Aftershow’s Rebranding: Commented Out:<ul><li><a href="https://www.folklore.org">Folklore.org</a></li><li>Bash.org:<ul><li><a href="http://bash.org/?104383">Next-level role-play</a></li><li><a href="http://bash.org/?244321">Passwords</a></li></ul></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you make the same enum available in both Swift and Objective-C?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you make the enum below available in both Swift and Objective-C?</span>
<span class="splashkeyword">enum</span> Choices {
    <span class="splashkeyword">case</span> firstOne
    <span class="splashkeyword">case</span> secondOne
    <span class="splashkeyword">case</span> thirdOne
    <span class="splashkeyword">case</span> fourthOne
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Classic Mac Apps!</p><ol><li>First Draft was a vector-based drawing app for Classic MacOS that featured a simplified toolset for making basic illustrations and line art.</li><li>BOOM is a Mac game that blends Bomberman and DOOM, featuring Bomberman-style gameplay for one or two players, with enemies and sound effects closely inspirited by DOOM.</li><li>Suitcase was an integral tool for any graphics professional, automating the process of enabling and disabling fonts based on the project at hand.</li><li>Stuffit Expander was the solution for Mac users to decompress archives, and was an integral part of the shareware community, serving as the de-facto filetype for many downloaded Mac apps.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://twitter.com/swiftexercises">Weekly Swift Exercises</a>! Subscribe to the <a href="https://mailchi.mp/hey/weekly-swift-exercise-signup">Mailinglist</a> today to subscribe!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-53</guid><title>Episode 53: Nobody Likes C++</title><description>We interview Matt Ronge, cofounder and creator of Astropad and Luna Display!</description><link>https://codecompletion.io/episodes/2021/ep-53</link><pubDate>Tue, 26 Oct 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 53! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/timedeck/id1525031563">TimeDeck</a> by <a href="https://twitter.com/CalebPanza">Caleb Panza</a></li></ul></li></ul><ul><li>Our interview with special guest Matt Ronge, co-founder and creator of Astropad and Luna Display!<ul><li><a href="https://twitter.com/mronge">Matt Ronge</a> on Twitter</li><li><a href="https://astropad.com">Astropad</a></li><li><a href="https://astropad.com/product/lunadisplay/">Luna Display</a></li><li><a href="https://astropad.com/podcast/">Building Astropad</a> Podcast</li></ul></li></ul><ul><li>Questions:<ul><li>How did you get started with development?</li><li>What were you doing pre-Astropad?</li><li>How did it come about?</li><li>How did you build a business off of Astropad?</li><li>What was the inspiration that lead into Luna?</li><li>How did you grow your team?</li><li>Why Windows?</li><li>How different is Rust?</li><li>Why not Swift?</li><li>How did the Windows release go?</li><li>What’s next?</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What can go wrong in this code that switches on an indexPath when a cell is tapped?</blockquote><pre><code class="splashlineNumbers">1
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8
9
10
11
</code><code><span class="splashcomment">// What can go wrong in this code that switches on an indexPath when a cell is tapped?</span>
<span class="splashkeyword">switch</span> (indexPath.<span class="splashproperty">row</span>) {
<span class="splashkeyword">case</span> <span class="splashnumber">0</span>:
    [<span class="splashkeyword">self</span> presentAbout];
<span class="splashkeyword">case</span> <span class="splashnumber">1</span>:
    [<span class="splashkeyword">self</span> presentHelp];
<span class="splashkeyword">case</span> <span class="splashnumber">2</span>:
    [<span class="splashkeyword">self</span> presentContact];
<span class="splashkeyword">default</span>:
    <span class="splashkeyword">break</span>;
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Latest Display Technologies!</p><ol><li>Thunderbolt 4 not only supports DisplayPort 2.0, but also allows the full 80 Gbps to be dedicated for video output, allowing 8K displays up to a whopping 240 fps.</li><li>DisplayLink allows displays to be connected over USB or ethernet by using an adapter that transforms the data signal into a DisplayPort or HDMI signal.</li><li>SDI, or serial digital interface, is the preferred connection on film sets connecting cameras to recording equipment, and allows for up to 48 Gbps over a single connection.</li><li>Also limited to 48 Gbps, HDMI 2.1 supports HDR10 footage of up to an 8K resolution at 120 Hz on supported cables.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-52</guid><title>Episode 52: We Apparently Really Want eGPU Support</title><description>We discuss Apple's Unleashed Event!</description><link>https://codecompletion.io/episodes/2021/ep-52</link><pubDate>Tue, 19 Oct 2021 03:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 52! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-51</guid><title>Episode 51: We Apparently Really Want eGPU Support</title><description>We predict what may be announced at Apple's Unleashed Event!</description><link>https://codecompletion.io/episodes/2021/ep-51</link><pubDate>Sun, 17 Oct 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 51! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="http://dailytimetracking.com/">Daily Time Tracking</a> by <a href="https://twitter.com/nielsmouthaan">Niels Mouthaan</a></li></ul></li></ul><ul><li>Our predictions for Apple’s Unleashed Event.</li><li>The case for new Intel Mac Pros:<ul><li>Metal support coming to Blender’s Cycles renderer: https://twitter.com/marcedwards/status/1448776972947976204</li><li><a href="https://en.wikipedia.org/wiki/Cascade_Lake_(microarchitecture">Cascade Lake Workstation CPUs</a>#Xeon<em>W-3200</em>series)</li><li><a href="https://en.wikipedia.org/wiki/Ice_Lake_(microprocessor">Ice Lake Workstation CPUs</a>#Workstation_processors)</li><li><a href="https://twitter.com/realmrpippy/status/1402316211619123202">Leak in Xcode 13 betas</a></li><li><a href="https://twitter.com/yuuki_ans/status/1419638932208164865">More leaks</a></li></ul></li></ul><ul><li>What we think will be coming to the new MacBook Air, MacBook Pro, Mac mini, iMac Pro, and potential Apple displays.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What can go wrong in this code that switches on an indexPath when a cell is tapped?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
9
10
11
</code><code><span class="splashcomment">// What can go wrong in this code that switches on an indexPath when a cell is tapped?</span>
<span class="splashkeyword">switch</span> (indexPath.<span class="splashproperty">row</span>) {
<span class="splashkeyword">case</span> <span class="splashnumber">0</span>:
    [<span class="splashkeyword">self</span> presentAbout];
<span class="splashkeyword">case</span> <span class="splashnumber">1</span>:
    [<span class="splashkeyword">self</span> presentHelp];
<span class="splashkeyword">case</span> <span class="splashnumber">2</span>:
    [<span class="splashkeyword">self</span> presentContact];
<span class="splashkeyword">default</span>:
    <span class="splashkeyword">break</span>;
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-50</guid><title>Episode 50: This Is Not Clear</title><description>We discuss Objective-C for Swift Developers!</description><link>https://codecompletion.io/episodes/2021/ep-50</link><pubDate>Wed, 13 Oct 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 50! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/de/app/pasty-smart-clipboard/id1544620654?l=en&mt=12">Pasty</a> by <a href="https://twitter.com/iSapozhnik">Ivan Sapozhnik</a></li></ul></li></ul><ul><li>Objective-C for Swift Developers</li><li>The Apple Watch Pre-orders</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you use UIViewController's updateViewConstraints() to quickly swap between very different view layouts?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// How can you use UIViewController's updateViewConstraints() to quickly swap between very different view layouts?</span>

<span class="splashkeyword">override func</span> updateViewConstraints() {
    <span class="splashcomment">// What goes in here?</span>
    
    <span class="splashkeyword">super</span>.<span class="splashcall">updateViewConstraints</span>()
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Swift on Other Platforms</p><ol><li>DroidUI builds on earlier efforts to get Swift compiling for Android by adding interconnects to existing Java-based libraries so an entire app could be built.</li><li>project1 is an attempt at implementing an x86 kernel completely in Swift that can run bare metal on Intel Macs and PCs.</li><li>swift-embedded is a toolchain to compile Swift so it can run on a microcontroller directly with no host operating system.</li><li>SwiftWasm is a toolchain allowing swift code to be compiled to WebAssembly, with full bridging to the DOM.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-49</guid><title>Episode 49: I For One Welcome Our Safety Overlords</title><description>We discuss what's new in Swift 5.5!</description><link>https://codecompletion.io/episodes/2021/ep-49</link><pubDate>Tue, 5 Oct 2021 21:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 49! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/smartfilter-for-sms/id1271258894">SmartFilter</a> by <a href="https://twitter.com/mmgreenmms">Jake Grant</a></li></ul></li></ul><ul><li>New Features in Swift 5.5<ul><li><a href="https://www.whatsnewinswift.com/?from=5.4&to=5.5">What’s new in Swift</a></li><li><a href="https://swift.org/blog/swift-5-5-released/">Swift 5.5 Release</a></li><li><a href="https://www.wwdcnotes.com/notes/wwdc21/10192/">Updated From WWDC21</a></li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0310-effectful-readonly-properties.md">SE-0319</a> - Read only properties can now throw</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0308-postfix-if-config-expressions.md">SE-0308</a> - #if within postfix member expressions</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0307-allow-interchangeable-use-of-double-cgfloat-types.md">SE-0307</a> - Automatic Bridging between CGFloat and Double</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0295-codable-synthesis-for-enums-with-associated-values.md">SE-0295</a> - Codable synthesis for enums with associated values</li><li>Faster JSON serialization</li><li>Lazy in local contexts</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0293-extend-property-wrappers-to-function-and-closure-parameters.md">SE-0293</a> - Property wrappers on function parameters</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0299-extend-generic-static-member-lookup.md">SE-0299</a> - Static members on protocols</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0291-package-collections.md">SE-0291</a> - Package Collections</li><li>Async/Await:<ul><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0296-async-await.md">SE-0296</a></li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0317-async-let.md">SE-0317</a></li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0300-continuation.md">SE-0300</a></li></ul></li></ul></li></ul><ul><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0298-asyncsequence.md">SE-0298</a> - Async Sequences<ul><li><a href="https://twitter.com/Catfish_Man/status/1442919592431538178">How to think about for-await loops</a></li></ul></li></ul><ul><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0304-structured-concurrency.md">SE-0304</a> - Structured concurrency<ul><li>WWDC21 - <a href="https://developer.apple.com/videos/play/wwdc2021/10134/">Explore structured concurrency in Swift</a></li><li>WWDC21 - <a href="https://developer.apple.com/videos/play/wwdc2021/10254/">Swift concurrency: Behind the scenes</a></li></ul></li></ul><ul><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0306-actors.md">SE-0306</a> - Actors<ul><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0316-global-actors.md">SE-0316</a> - Global Actors</li><li><a href="https://github.com/apple/swift-evolution/blob/main/proposals/0302-concurrent-value-and-concurrent-closures.md">SE-0302</a> - Sendable</li></ul></li></ul><ul><li>Discussion on Swift Evolution Proposals and the Future of Swift<ul><li><a href="https://forums.swift.org/t/declarative-string-processing-overview/52459">Declarative String Processing</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How can you use UIViewController's updateViewConstraints() to quickly swap between very different view layouts?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
</code><code><span class="splashcomment">// How can you use UIViewController's updateViewConstraints() to quickly swap between very different view layouts?</span>

<span class="splashkeyword">override func</span> updateViewConstraints() {
    <span class="splashcomment">// What goes in here?</span>
    
    <span class="splashkeyword">super</span>.<span class="splashcall">updateViewConstraints</span>()
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-48</guid><title>Episode 48: The Announcement Announcement</title><description>We discuss and review the iPhone 13 Pro!</description><link>https://codecompletion.io/episodes/2021/ep-48</link><pubDate>Tue, 28 Sep 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 48! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://noteifyapp.com/dockview/">DockView</a> by <a href="https://twitter.com/gerasim_sergey">Gerasim Sergey</a></li></ul></li></ul><ul><li>iPhone 13 Pro Reviews</li><li>European Union device charging port requirements</li><li>Nintendo Direct</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How would you transform the code below to use the new async/await pattern?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
9
10
11
</code><code><span class="splashcomment">// How would you transform the code below to use the new async/await pattern?</span>

<span class="splashcall">print</span>(<span class="splashstring">"Preparing request…"</span>)

urlSession.<span class="splashcall">dataTask</span>(with: httpRequest) { data, response, error <span class="splashkeyword">in</span>
    <span class="splashtype">DispatchQueue</span>.<span class="splashproperty">main</span>.<span class="splashcall">async</span> {
        <span class="splashcall">print</span>(<span class="splashstring">"Received response:</span> \(response)<span class="splashstring">"</span>)
    }
}.<span class="splashcall">resume</span>()

<span class="splashcall">print</span>(<span class="splashstring">"Sent request!"</span>)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-47</guid><title>Episode 47: Did You Know Apple Lives In California?</title><description>We discuss last week's California Streaming Apple Event!</description><link>https://codecompletion.io/episodes/2021/ep-47</link><pubDate>Tue, 21 Sep 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 47! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://mustud.app/">Mustud</a> by <a href="https://twitter.com/BeauNouvelle">Beau Nouvelle</a></li><li>Apple’s California Streaming iPhone Event:</li><li><a href="https://twitter.com/jon_prosser/status/1437849243172196353">John Prosser on Twitter</a></li><li><a href="https://twitter.com/keleftheriou/status/1437845736951992321">FlickType by Kosta Eleftheriou</a></li><li><a href="https://twitter.com/JonyIveParody/status/1437462250995036162">Not Jony Ive on Twitter</a></li><li><a href="https://twitter.com/dimitribouniol/status/1437880744462802945">Dimitri’s Twitter Poll</a></li><li><a href="http://codeworkshop.net/objc-diff/sdkdiffs/">Objective-C SDK Diffs</a></li><li>Aftershow: Linh’s kernel-paniking SwiftUI compiler bug.</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How would you transform the code below to use the new async/await pattern?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
9
10
11
</code><code><span class="splashcomment">// How would you transform the code below to use the new async/await pattern?</span>

<span class="splashcall">print</span>(<span class="splashstring">"Preparing request…"</span>)

urlSession.<span class="splashcall">dataTask</span>(with: httpRequest) { data, response, error <span class="splashkeyword">in</span>
    <span class="splashtype">DispatchQueue</span>.<span class="splashproperty">main</span>.<span class="splashcall">async</span> {
        <span class="splashcall">print</span>(<span class="splashstring">"Received response:</span> \(response)<span class="splashstring">"</span>)
    }
}.<span class="splashcall">resume</span>()

<span class="splashcall">print</span>(<span class="splashstring">"Sent request!"</span>)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: New Autocompletions in Xcode 13</p><ol><li>Our favorite optional binding <code>if let</code> will now autocomplete existing optionals as the left-hand side of the binding as you type it.</li></ol><ol start="2"><li>For loops will detect if you type the singular form of an existing collection type and autocomplete the entire statement for you.</li></ol><ol start="3"><li>When calling functions, the editor will prioritize variables with similar names to the argument you are autocompleting to make getting through long argument lists easier.</li></ol><ol start="4"><li>When dot-chaining members of an expression like <code>view.undoManager.canUndo</code>, the editor will now allow you to skip and will automatically insert <code>undoManager</code> for you if you type <code>view.canUndo</code>.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-46</guid><title>Episode 46: Let Me Solve All Your Problems</title><description>We discuss SwiftUI from multiple levels of experience, and lightly discuss this week's event along with why nobody should get the Ceramic Apple Watch!</description><link>https://codecompletion.io/episodes/2021/ep-46</link><pubDate>Mon, 13 Sep 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 46! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://jellycuts.com/">Jellycuts</a> by <a href="https://twitter.com/LinemanZachary">Zachary Lineman</a></li></ul></li></ul><ul><li>Our experience using SwiftUI, best practices, and hidden complexity.<ul><li><a href="https://www.underdogdevs.org/">Underdog devs</a></li><li><a href="https://twitter.com/i/web/status/1422716472099487744 ">Asam sharp (@azamsharp) on Twitter</a></li><li><a href="https://swiftui-lab.com">SwiftUI Lab</a></li><li>Objc.io - <a href="https://www.objc.io/books/thinking-in-swiftui/">Understanding SwiftUI</a></li><li>WWDC21 - <a href="https://developer.apple.com/videos/play/wwdc2021/10022/">Demystify SwiftUI</a></li></ul></li></ul><ul><li>The best architecture for SwiftUI does not exist.<ul><li>Enums are great in Swift, and everyone should use them.</li></ul></li></ul><ul><li>What announcements we expect at Apple’s California Streaming event.<ul><li>Ceramic Apple Watches are a danger to paint jobs everywhere.</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>How would you transform the code below to use the new async/await pattern?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
9
10
11
</code><code><span class="splashcomment">// How would you transform the code below to use the new async/await pattern?</span>

<span class="splashcall">print</span>(<span class="splashstring">"Preparing request…"</span>)

urlSession.<span class="splashcall">dataTask</span>(with: httpRequest) { data, response, error <span class="splashkeyword">in</span>
    <span class="splashtype">DispatchQueue</span>.<span class="splashproperty">main</span>.<span class="splashcall">async</span> {
        <span class="splashcall">print</span>(<span class="splashstring">"Received response:</span> \(response)<span class="splashstring">"</span>)
    }
}.<span class="splashcall">resume</span>()

<span class="splashcall">print</span>(<span class="splashstring">"Sent request!"</span>)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: SwiftUI View Modifiers!</p><ol><li>Much like UIKit, SwiftUI allows the interface orientation to be manipulated using <code>statusBar(orientation:)</code>, moving the status bar to one of the four screen edges.</li></ol><ol start="2"><li>Tooltips can be added to SwiftUI views using the <code>help(_:)</code> modifier, helping to guide the user around the interface without them needing to directly invoke any actions.</li></ol><ol start="3"><li>Any view in the hierarchy can be modified with <code>onOpenURL(perform:)</code> to perform localized URL handling so long as it is part of the hierarchy when the URL is opened.</li></ol><ol start="4"><li>A badge can be added to tab bar items using the <code>badge(_:)</code> modifier, but this will also add a visual indicator to list rows to help convey supplementary information.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://twitter.com/swiftexercises">Weekly Swift Exercises</a>! Subscribe to the <a href="https://mailchi.mp/hey/weekly-swift-exercise-signup">Mailinglist</a> today to subscribe!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-45</guid><title>Episode 45: You Are Not Your Code</title><description>We interview Andrew Kozlik and Tom Marks, creators of Recipe Box, about the details of being Indie!</description><link>https://codecompletion.io/episodes/2021/ep-45</link><pubDate>Tue, 7 Sep 2021 13:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 45! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/waay-learn-music-theory/id974357313">Waay</a> by <a href="https://twitter.com/leakywellington">Alex Andrews</a></li></ul></li></ul><ul><li>Our interview with Andrew Kozlik and Tom Marks, creators of Recipe Box!<ul><li><a href="https://www.getrecipebox.com">Recipe Box</a></li><li><a href="https://twitter.com/AndrewKozlik">Andrew Kozlik</a></li><li><a href="https://twitter.com/London_atlas">Tom Marks</a></li></ul></li></ul><ul><li><a href="https://www.zendesk.com">Zendesk</a></li><li><a href="https://republic.co/">Republic</a></li><li>Non Dilutive Capital raising with <a href="https://pipe.com/">Pipe</a></li><li>Steve Troughton-Smith’s <a href="https://www.highcaffeinecontent.com/blog/20210605-Catalyst-Sample-Code-Roundup">Catalyst Roundup</a></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Why is this SwiftUI code not advisable, and how can you fix it?</blockquote><pre><code class="splashlineNumbers">1
2
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</code><code><span class="splashcomment">// Why is this SwiftUI code not advisable, and how can you fix it?</span>
<span class="splashkeyword">var</span> body: <span class="splashkeyword">some</span> <span class="splashtype">View</span> {
    <span class="splashkeyword">if</span> isLoggedIn {
        <span class="splashtype">Text</span>(<span class="splashstring">"You are logged in!"</span>)
    } <span class="splashkeyword">else</span> {
        <span class="splashtype">Text</span>(<span class="splashstring">"You must first log in!"</span>)
    }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Apple Antitrust Cases!</p><ol><li>In its first antitrust case, Apple Computer was sued in 1997 by publishing houses for not licensing its MacOS system software to run on other compatible hardware at the time.</li></ol><ol start="2"><li>Apple was sued in 2005 for allegedly operating a music-downloading monopoly through iTunes and the iPod music player, preventing RealNetworks music from playing on iPods.</li></ol><ol start="3"><li>Just a few months after the original iPhone was released, Apple was sued in a case that lasted until 2019 partly over the fact that the just-released device could not run third-party apps.</li></ol><ol start="4"><li>After only a year and a half of litigation, Apple was found guilty in a case where there was compelling evidence that they played a central role to eliminate retail competition.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-44</guid><title>Episode 44: The Biggest, Richest Child</title><description>We discuss Apple's CSAM Strategy, and their just-announced Settlement with US Developers!</description><link>https://codecompletion.io/episodes/2021/ep-44</link><pubDate>Tue, 31 Aug 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 44! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://jordanhipwell.com/MusicInfo/">Music Info</a> by <a href="https://twitter.com/JordanHipwell">Jordan Hipwell</a></li></ul></li></ul><ul><li>Our thoughts on Apple’s CSAM strategy</li><li>Hot off the press: <a href="https://www.apple.com/newsroom/2021/08/apple-us-developers-agree-to-app-store-updates/">Apple’s class action settlement with US Developers</a></li><li><a href="https://twitter.com/cabel/status/1366878238539087872">Panic’s workaround</a></li><li><a href="https://pcalc.com/dice/">Dice by PCalc</a></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Why is this SwiftUI code not advisable, and how can you fix it?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
</code><code><span class="splashcomment">// Why is this SwiftUI code not advisable, and how can you fix it?</span>
<span class="splashkeyword">var</span> body: <span class="splashkeyword">some</span> <span class="splashtype">View</span> {
    <span class="splashkeyword">if</span> isLoggedIn {
        <span class="splashtype">Text</span>(<span class="splashstring">"You are logged in!"</span>)
    } <span class="splashkeyword">else</span> {
        <span class="splashtype">Text</span>(<span class="splashstring">"You must first log in!"</span>)
    }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Git commands!</p><ol><li><code>git whatchanged --since="2 weeks ago"</code> will show a log of commit messages that have been made since 2 weeks ago.</li></ol><ol start="2"><li><code>git add -p</code> will allow you to stage hunks of code interactively from the command line.</li></ol><ol start="3"><li><code>git worktree add</code> allows you to checkout a specific branch to a separate directory.</li></ol><ol start="4"><li><code>git grog</code> generates an ascii-art graphical log showing branch points leading up to the current commit.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-43</guid><title>Episode 43: There Are Dozens of Us</title><description>We discuss ideal App Development Team Sizes and Project Architectures!</description><link>https://codecompletion.io/episodes/2021/ep-43</link><pubDate>Tue, 24 Aug 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 43! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://www.timewave.studio">TimeWave</a>) by <a href="https://twitter.com/mdsahilak">Muhammed Sahil Arayakandy</a></li></ul></li></ul><ul><li>Ideal team sizes for app development</li><li>Mental map of a project</li><li>Project Architectures</li><li>Aftershow: HomeKit</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Why could the data task handler not get a response back from the server?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
</code><code><span class="splashcomment">// Why could the data task handler not get a response back from the server?</span>
urlSession.<span class="splashcall">dataTask</span>(with: httpRequest) { data, response, error <span class="splashkeyword">in</span>
    <span class="splashcall">print</span>(<span class="splashstring">"📮 Response:</span> \(response)<span class="splashstring">"</span>)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-42</guid><title>Episode 42: Comically Large Audio</title><description>We discuss Accessibility, VoiceOver, and Spencer's experience with it!</description><link>https://codecompletion.io/episodes/2021/ep-42</link><pubDate>Tue, 17 Aug 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 42! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="http://calendarpasteapp.com">Calendar Paste</a> by <a href="https://twitter.com/ctietze">Christian Tietze</a></li><li>Spencer’s temporary need for Accessibility features</li><li>Apple’s accessibility settings</li><li>Widgets and dynamic type</li><li>Layout and scroll views</li><li>Accessibility labels and identifiers</li><li>Accessibility inspector and auditing the UI</li><li>Use Accessibility features yourself to improve your own implementations</li><li>Not just graphics: Audio, haptics</li><li><a href="https://developer.apple.com/design/human-interface-guidelines/">HIG</a></li><li>Control-zoom</li><li><a href="https://store.steampowered.com/app/1282730/Loop_Hero/">Loop Hero</a></li><li>Back tap</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Given the SwiftUI Button below, how would you make it accessible?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// Given the Button below, how would you make it accessible?</span>
<span class="splashtype">Button</span>(action: submitAnswer) {
    <span class="splashtype">Image</span>(systemName: <span class="splashstring">"paperplane.fill"</span>)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-41</guid><title>Episode 41: Humans are Weird</title><description>We discuss Developer Productivity and Motivation!</description><link>https://codecompletion.io/episodes/2021/ep-41</link><pubDate>Tue, 10 Aug 2021 16:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 41! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://c-command.com/toothfairy/">ToothFairy</a> by <a href="https://twitter.com/mjtsai">Michael Tsai</a></li></ul></li></ul><ul><li>Fernando:<ul><li><a href="https://selfcontrolapp.com/">Self Control</a></li><li>YouTube premium</li><li><a href="https://www.amazon.com/ajedrez-digital-temporizador-profesional-funci%C3%B3n/dp/B07M5RP9SC/ref=sr_1_4_sspa">Fernando’s Chess Clock</a></li><li><a href="https://apps.apple.com/us/app/seven-7-minute-hiit-workout/id650276551">Seven</a></li></ul></li></ul><ul><li>Paul:<ul><li>Getting Sleep</li><li>Are you stuck?</li><li>Exercise</li><li><a href="https://ugmonk.com/blogs/journal/analog-the-simplest-productivity-system">Analog</a></li><li><a href="https://jamesclear.com/habit-journal">Journa</a></li><li><a href="https://apps.apple.com/us/app/super-easy-timer/id1353137878?mt=12">SuperEasyTimer</a></li><li><a href="https://multimarkdown.com/composer4/">MultiMarkdown Composer</a></li><li>Doing Research</li><li>Solid blocks of time to focus, Meditation with <a href="https://apps.apple.com/us/app/calm/id571800810">Calm</a></li><li><a href="https://todoist.com/productivity-methods/pomodoro-technique">Pomodoro method</a></li><li>Intermittent Fasting (<a href="https://www.zerofasting.com">Zero</a>)</li><li>Document your energy</li></ul></li></ul><ul><li>Spencer:<ul><li>Taking naps</li><li>Cultivate the zone</li><li>Having Music on</li><li>Reducing Friction</li><li><a href="https://www.samsung.com/us/computing/monitors/gaming/49--odyssey-g9-gaming-monitor-lc49g95tssnxza/">Spencer’s super-wide display</a></li><li>Financial motivations</li></ul></li></ul><ul><li>Ben:<ul><li>Have reminders</li><li>Keeping main work in front of you</li><li>Soundtracks are great for concentration</li><li>Batman soundtrack link</li><li>Cyberpunk/FtL, Passengers</li><li>Keeping things fresh with coding problems</li><li>A distraction you have control over</li><li>Noise cancelling headphones</li><li>Protect your energy and time</li><li>Decision fatigue</li></ul></li></ul><ul><li>Dimitri:<ul><li>Drift between interests to avoid burnout</li><li><a href="https://rattibha.com/thread/1388107620574171140?lang=en">Burnout anecdote</a></li><li>Concentrating in silence</li><li>Understand the problem well before diving in</li><li>Dimitri was wrong; <a href="https://en.wikipedia.org/wiki/Gluconeogenesis">Gluconeogenesis</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What could potentially go wrong with this particular error handling code?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashcomment">// What could potentially go wrong with the code below?</span>
<span class="splashtype">NSError</span> *theError;
<span class="splashtype">BOOL</span> result = [anObject doSomethingThatCanFailWithError:&amp;theError];

<span class="splashkeyword">if</span> (theError) {
    <span class="splashtype">NSLog</span>(<span class="splashkeyword">@"The</span> operation failed! %<span class="splashstring">@", theError);</span>
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Blast from the past!</p><ol><li>Swift Literals: Although Dictionaries prohibit it, <code>ExpressibleByDictionaryLiteral</code> allows for multiple entries with the same key.</li></ol><ol start="2"><li>Emacs key bindings in Cocoa: You may know of the <code>⌘⌫</code> command to delete the entire line to the left of the text cursor, but <code>⌃K</code> can be used to delete the line to the right of the text cursor.</li></ol><ol start="3"><li>Objective-C method names in the iOS SDK: <code>convolve­With­Destination:temp­Buffer:­source­Offset­To­Region­Of­InterestX:­source­Offset­To­Region­Of­InterestY:­kernel:­kernel­Height:­kernel­Width:­divisor:­background­Color:­options:­</code> is one of many related Objective-C methods in the Accelerate framework for manipulating images.</li></ol><ol start="4"><li>Unicode names for Mac modifier keys: Located between the control and command keys on the keyboard, the option key is unoriginally called <code>OPTION KEY</code> in the unicode specification, but was also known as the “closed apple key” on Apple II series computers.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-40</guid><title>Episode 40: Merge Commits Are Evil</title><description>We discuss Git and how to get better at it!</description><link>https://codecompletion.io/episodes/2021/ep-40</link><pubDate>Tue, 3 Aug 2021 14:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 40! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with a new app for you to check out:<ul><li><a href="https://apps.apple.com/us/app/billsly/id1560270556">Billsly</a> by <a href="https://twitter.com/CaptainnClayton">Clayton Watkins</a></li></ul></li></ul><ul><li>The need for git as a modern developer</li><li>Basic usage of git</li><li>MacOS versioning is similar but different</li><li>Using Git as a note taking tool (in the command line, preferably) to get more comfortable with it.</li><li>Good commit messages and staging</li><li>Setting up a global git ignore file</li><li>Git Apps:<ul><li><a href="https://desktop.github.com">GitHub Desktop</a></li><li><a href="https://www.git-tower.com/mac">Git Tower</a></li><li><a href="https://git-fork.com">Fork</a></li><li><a href="https://www.gitkraken.com">Git Kracken</a></li></ul></li></ul><ul><li>What a Pull request is, and why they are useful<ul><li><a href="https://github.com">GitHub</a></li><li><a href="https://about.gitlab.com">GitLab</a></li><li><a href="https://bitbucket.org/product">Bitbucket</a></li></ul></li></ul><ul><li>Doing a self reviews before having others review your code</li><li>Setting up branch protections to keep from messing up</li><li>Dimitri’s <a href="https://github.com/lambdaschool/ios-git-setup">Git starter link and wiki</a></li><li>Bonus: <a href="https://www.youtube.com/watch?v=8wUOUmeulNs">Spooning by Bitbucket</a></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Assuming these steps need to be performed in the order they are presented, how would you improve this code?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
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6
7
</code><code><span class="splashcomment">// Assuming these steps need to be performed in the order
// they are presented, how would you improve this code?</span>
<span class="splashkeyword">let</span> results = array
    .<span class="splashcall">map</span> { $0.<span class="splashproperty">path</span> }
    .<span class="splashcall">filter</span> { $0.<span class="splashcall">hasPrefix</span>(<span class="splashstring">"/Documents"</span>) }
    .<span class="splashcall">compactMap</span> { $0.<span class="splashcall">components</span>(separatedBy: <span class="splashstring">"/"</span>).<span class="splashproperty">last</span> }
    .<span class="splashcall">prefix</span>(maxEntries)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-39</guid><title>Episode 39: Breakpoint Breadcrumbs</title><description>We discuss Debugging Tips and Techniques!</description><link>https://codecompletion.io/episodes/2021/ep-39</link><pubDate>Tue, 27 Jul 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 39! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://songkit.app">SongKit</a> by <a href="https://twitter.com/tgrapperon">Thomas Grapperon</a></li><li><a href="https://minimal.app">Minimal</a> by <a href="https://twitter.com/arthurofbabylon">Arthur Van Siclen</a></li></ul></li></ul><ul><li>Debugging Discussion</li><li>View Debugging<ul><li>Reveal: https://revealapp.com</li></ul></li></ul><ul><li>Console Commands: <code>v</code>, <code>p</code>, <code>po</code></li><li>The usefulness of print debugging</li><li>Breakpoints<ul><li><a href="https://www.youtube.com/watch?v=kpk2tdsPh0A">Parallel Universes</a></li></ul></li></ul><ul><li>os_signpost and logging</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Assuming these steps need to be performed in the order they are presented, how would you improve this code?</blockquote><pre><code class="splashlineNumbers">1
2
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4
5
6
7
</code><code><span class="splashcomment">// Assuming these steps need to be performed in the order
// they are presented, how would you improve this code?</span>
<span class="splashkeyword">let</span> results = array
    .<span class="splashcall">map</span> { $0.<span class="splashproperty">path</span> }
    .<span class="splashcall">filter</span> { $0.<span class="splashcall">hasPrefix</span>(<span class="splashstring">"/Documents"</span>) }
    .<span class="splashcall">compactMap</span> { $0.<span class="splashcall">components</span>(separatedBy: <span class="splashstring">"/"</span>).<span class="splashproperty">last</span> }
    .<span class="splashcall">prefix</span>(maxEntries)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Error Handling!</p><ol><li>NSError supports built-in error recovery through the use of a recovery attempter, allowing the origin of the error a chance to handle things like retries when delivered to an NSAlert.</li></ol><ol start="2"><li>A custom Swift Error type can provide localized description information by conforming to LocalizedError and overriding localizedDescription.</li></ol><ol start="3"><li>Although it isn’t possible to specify the type of Error thrown from a method in Swift, it is possible to restrict the error type when it is delivered within a Result.</li></ol><ol start="4"><li>It is possible to omit localized descriptions and failure reasons when creating an NSError while still making this information available to consumers of the error by creating a userInfo provider for the error domain.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://mailchi.mp/hey/weekly-swift-exercise-signup">Weekly Swift Exercises</a>! Subscribe to the <a href="https://mailchi.mp/hey/weekly-swift-exercise-signup">Mailinglist</a> today to subscribe!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-38</guid><title>Episode 38: We Hand Chiseled Our Corners</title><description>We discuss Server-configured UI and Native VS Cross Platform development!</description><link>https://codecompletion.io/episodes/2021/ep-38</link><pubDate>Tue, 20 Jul 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 38! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://noteifyapp.com/activedock/">ActiveDock</a> by <a href="https://twitter.com/gerasim_sergey">Gerasim Sergey</a></li><li><a href="https://timingapp.com/?lang=en">Timing</a> by <a href="https://twitter.com/daniel_a_a">Daniel Alm</a></li></ul></li></ul><ul><li>Server-configured UI<ul><li><a href="https://medium.com/airbnb-engineering/a-deep-dive-into-airbnbs-server-driven-ui-system-842244c5f5">AirBnB</a></li><li><a href="https://turbo.hotwired.dev">Turbo</a></li><li><a href="https://developer.apple.com/documentation/tvml">TVML</a></li></ul></li></ul><ul><li>iOS VS Web Development</li><li>Websites in App Form</li><li>Native vs. Cross-Platform Development: Dropbox and Airbnb’s Backpedaling</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What’s the best way to check if the file that is passed in exists or not?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">func</span> checkIfExists(<span class="splashkeyword">_</span> fileURL: <span class="splashtype">URL</span>) -&gt; <span class="splashtype">Bool</span> {
    <span class="splashcomment">// What's the best way to check if the file at fileURL
    // exists or not?</span>
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Email Validation!</p><ol><li>"I love Objective-C"@coders.com</li></ol><ol start="2"><li>dimitri.@codecompletion.io</li></ol><ol start="3"><li>admin@[IPv6:2020:de9::1]</li></ol><ol start="4"><li>appsupport(See Dimitri)@helpdesk</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-37</guid><title>Episode 37: Can you Verizon me now?</title><description>We are joined by special guest Michael Redig and discuss how he got into development, and how to get your foot in the door as a Junior Developer!</description><link>https://codecompletion.io/episodes/2021/ep-37</link><pubDate>Tue, 13 Jul 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 37! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://c-command.com/spamsieve/">SpamSieve</a> by <a href="https://twitter.com/mjtsai">Michael Tsai</a></li><li><a href="https://tableflipapp.com">TableFlip</a> by <a href="https://twitter.com/ctietze">Christian Tietze</a></li></ul></li></ul><ul><li>Interview with <a href="https://twitter.com/mredig">Michael Redig</a><ul><li>How did you get into development?</li><li>When did you start making an “application”?</li><li>What was the transition from learning SpriteKit first to more traditional iOS development like?</li><li>When did you start making more “properly” built UIKit apps?</li><li>What projects are you working on right now?</li><li>Any tips for someone who wants to do development full-time?</li></ul></li></ul><ul><li><a href="https://copilot.github.com">GitHub CoPilot</a></li><li><a href="https://apps.apple.com/us/app/email-link-protector/id1566806044?mt=12">Email Link Protector</a></li><li><a href="https://testflight.apple.com/join/iJImKDBd">KnowMe</a></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What’s the best way to check if the file that is passed in exists or not?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
</code><code><span class="splashkeyword">func</span> checkIfExists(<span class="splashkeyword">_</span> fileURL: <span class="splashtype">URL</span>) -&gt; <span class="splashtype">Bool</span> {
    <span class="splashcomment">// What's the best way to check if the file at fileURL
    // exists or not?</span>
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Obscure Foundation File Classes!</p><ol><li>NSFileVolume is a class that allows you to perform fundamental file system operations on volumes, such as injecting its partitions.</li></ol><ol start="2"><li>NSFileWrapper represents nodes in the file system, such as directories known as file packages, but can also represent regular files and symbolic links.</li></ol><ol start="3"><li>NSFileHandle provides a wrapper for file system descriptors, allowing you to perform basic file IO such as reading, writing, and locking files.</li></ol><ol start="4"><li>NSURLProtocol allows you to implement custom loading strategies for your own protocols, so they can be used anywhere a regular NSURL is used.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-36</guid><title>Episode 36: O(unable to type-check this expression in reasonable time)</title><description>We discuss Project Planning and Management!</description><link>https://codecompletion.io/episodes/2021/ep-36</link><pubDate>Tue, 6 Jul 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 36! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/eventzones/id1541274241">EventZones</a> by <a href="https://twitter.com/BharatDevk">Bharat Kumar</a></li><li><a href="https://timeinorbit.com">Orbit</a> by <a href="https://twitter.com/malinsundberg">Malin Sundberg</a></li></ul></li></ul><ul><li><a href="https://adrianmejia.com/most-popular-algorithms-time-complexity-every-programmer-should-know-free-online-tutorial-course/">Computational complexity, and Big O notation</a>,</li><li>The importance of documenting algorithms,</li><li>Benchmarking and profiling before optimizing,</li><li>CMTime and all its weirdness.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Which key command in Xcode will allow you to rename the variable you have selected everywhere it appears in the current scope?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
</code><code><span class="splashcomment">// Which key command in Xcode will rename the selected variable
// within the current scope?</span>

<span class="splashkeyword">let</span> lable = <span class="splashtype">UILabel</span>()
lable.<span class="splashproperty">text</span> = <span class="splashstring">"Name"</span>
lable.<span class="splashproperty">textColor</span> = .<span class="splashdotAccess">blue</span>
rootView.<span class="splashcall">addSubview</span>(lable)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-35</guid><title>Episode 35: I Didn't Watch the Video</title><description>We discuss Project Planning and Management!</description><link>https://codecompletion.io/episodes/2021/ep-35</link><pubDate>Tue, 29 Jun 2021 12:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 35! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://apps.apple.com/app/appwage/id834352667">AppWage</a> by <a href="https://twitter.com/kyle_hankinson">Kyle Hankinson</a></li><li><a href="https://litur.app/">Litur</a> by <a href="https://twitter.com/knightbenax">Bezaleel Reuben Ashefor</a></li></ul></li></ul><ul><li>Do you plan a project beforehand or jump in headfirst?</li><li>Why design an app in a graphics (non-IDE) application?</li><li>Do you a begin a project with the model layer or UI first?<ul><li><a href="https://twitter.com/shituserstory">Shit user stories</a></li><li><a href="https://youtu.be/nn2FB1P_Mn8">IT Crowd: “Have you tried turning it off and on again?”</a></li></ul></li></ul><ul><li>Common Project Management Tool Terminology.</li><li>Aftershow: Tiktok is crazy town:<ul><li><a href="https://vm.tiktok.com/ZMdPJt4X1/">NJ crazy squatter</a></li><li><a href="https://www.tiktok.com/@pollypocketsy/video/6925516290513833222?lang=en&is_copy_url=1&is_from_webapp=v1">Crazy Ex Husband</a></li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Which key command in Xcode will allow you to rename the variable you have selected everywhere it appears in the current scope?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
</code><code><span class="splashcomment">// Which key command in Xcode will rename the selected variable
// within the current scope?</span>

<span class="splashkeyword">let</span> lable = <span class="splashtype">UILabel</span>()
lable.<span class="splashproperty">text</span> = <span class="splashstring">"Name"</span>
lable.<span class="splashproperty">textColor</span> = .<span class="splashdotAccess">blue</span>
rootView.<span class="splashcall">addSubview</span>(lable)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Swift Actors!</p><ol><li>Actors are a reference type distinct from classes that enable thread-safe access to the data within the actor by gating access behind async members.</li></ol><ol start="2"><li>Actors can be used from Objective-C so long as the type is marked with @objc, and only non-isolated and asynchronous methods are called.</li></ol><ol start="3"><li>Actors can be accessed from non-asynchronous code within the same module so long as only let properties or non isolated methods are called.</li></ol><ol start="4"><li>Actors are implemented using special GCD queues and locks under the hood at compile time, minimizing bugs that arise from incorrect usage of isolated properties.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-34</guid><title>Episode 34: Design is Hard</title><description>We discuss Cocoa graphics frameworks and UI design!</description><link>https://codecompletion.io/episodes/2021/ep-34</link><pubDate>Tue, 22 Jun 2021 17:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 34! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://wordcounterapp.com">Word Counter</a> by <a href="https://twitter.com/ctietze">Christian Tietze</a></li><li><a href="https://apps.apple.com/us/app/pro-ledger/id1524370871">Pro Ledger</a> by <a href="https://twitter.com/theandynadal">Andy Nadal</a></li></ul></li></ul><ul><li>A tour of Cocoa graphics frameworks: CoreGraphics, AppKit/UIKit, and SwiftUI,<ul><li><a href="https://bignerdranch.com/blog/core-graphics-part-4-a-path-a-path/">Big Nerd Ranch on bezier paths</a></li><li><a href="https://ciechanow.ski/drawing-bezier-curves/">Drawing Bézier Curves by Bartosz Ciechanowshi</a></li><li><a href="https://www.paintcodeapp.com">Paintcode</a></li></ul></li></ul><ul><li>How to improve your design skills and what to look out for.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Which key command in Xcode will build a template doc comment for the function below?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
</code><code><span class="splashcomment">// Which key command in Xcode will build a template documentation
// comment for the function below?</span>

<span class="splashkeyword">func</span> doTheCoolThing(name: <span class="splashtype">String</span>, food: <span class="splashtype">Food</span>) -&gt; <span class="splashtype">CoolerThing</span> {
    ...
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-33</guid><title>Episode 33: 💧 Vapor-ware</title><description>We discuss Vapor, server-side swift, and async/await!</description><link>https://codecompletion.io/episodes/2021/ep-33</link><pubDate>Wed, 16 Jun 2021 02:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 33! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://apps.apple.com/gb/app/worth-it/id1515358890">Worth It</a> by <a href="https://twitter.com/maxmzzn">Maxime Mazzone</a></li><li><a href="https://apps.apple.com/us/app/unwind-mindful-breathing/id1470613384">Unwind</a> by <a href="https://twitter.com/kushsolitary">Kushagra Agarwal</a></li></ul></li></ul><ul><li>Server side swift,</li><li>Vapor,</li><li>async/await, and</li><li>Futures and Promisses.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Which key command in Xcode will build a template doc comment for the function below?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
</code><code><span class="splashcomment">// Which key command in Xcode will build a template documentation
// comment for the function below?</span>

<span class="splashkeyword">func</span> doTheCoolThing(name: <span class="splashtype">String</span>, food: <span class="splashtype">Food</span>) -&gt; <span class="splashtype">CoolerThing</span> {
    ...
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-32</guid><title>Episode 32: I Learned A Lot Today</title><description>With special guest Linh Bouniol, we discuss all the new announcements from WWDC21 for later this year!</description><link>https://codecompletion.io/episodes/2021/ep-32</link><pubDate>Wed, 9 Jun 2021 18:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 32! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/filmlog/id635642879">Filmlog</a> by <a href="https://twitter.com/_sbraun">Simon Braun</a></li><li><a href="https://zettelkasten.de/the-archive/">The Archive</a> by <a href="https://twitter.com/ctietze">Christian Tietze</a></li><li><a href="https://sensei.app">Sensei</a> by <a href="https://twitter.com/oskargroth">Oskar Groth</a></li></ul></li></ul><ul><li>New announcements at WWDC!</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: WWDC!</p><ol><li>Marking the start of the jacket trend that would be used for several years, WWDC10 gave each attendee a black track jacket with the number 10 stitched on the back.</li></ol><ol start="2"><li>WWDC12 was the last event hosted by Steve Jobs, but did see the introduction of the final generation of AirPort Extremes and Time Capsules, which would no longer be updated.</li></ol><ol start="3"><li>WWDC13 sold out in a tremendously fast 71 seconds, but some attendees would later say attendance was worth it since it featured Phil Schiller’s "Can't innovate anymore, my ass!" quote.</li></ol><ol start="4"><li>WWDC16 marked the first departure from holding the Keynote at the Moscone Center in years by hosting it at the Bill Graham Civic Auditorium instead.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-31</guid><title>Episode 31: What's an íPad?</title><description>With special guest Paul Solt, we discuss our final thoughts on Basecamp, the Epic vs Apple trial, and go over the new device reviews!</description><link>https://codecompletion.io/episodes/2021/ep-31</link><pubDate>Sat, 5 Jun 2021 22:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 31! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://tomato2.app">Tomato 2</a> by <a href="https://twitter.com/_vojto">Vojtech Rinik</a></li><li><a href="https://devutils.app">DevUtils</a> by <a href="https://twitter.com/tdinh_me">Tony Dinh</a></li><li><a href="https://codakuma.com/personal-best/">Personal Best</a> by <a href="https://twitter.com/shauneba">Shaun Donnelly</a></li></ul></li></ul><ul><li>Our final thoughts on Basecamp,</li><li>New Device Reviews: iMac, iPad, Apple TV</li><li>The Epic vs Apple Trial</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: The NSString Class Cluster!</p><ol><li>Most dynamically allocated NSStrings are actually _NSCFString, which is essentially represented by a CFStringRef or CFMutableStringRef.</li></ol><ol start="2"><li>NSSecuredString is a specialized implementation of a string that keeps its contents encrypted at rest until they are accessed directly, preventing RAM snapshot analysis.</li></ol><ol start="3"><li>Whenever path component methods are used, NSPathStore2 is returned, providing an optimized view into an array of path components.</li></ol><ol start="4"><li>NSCheapMutableString is a limited mutable string that allows for zero-copy initialization, primarily used for temporarily wrapping stack buffers.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-30</guid><title>Episode 30: It's a Big Sure</title><description>We discuss what WWDC will bring to us as developers.</description><link>https://codecompletion.io/episodes/2021/ep-30</link><pubDate>Wed, 26 May 2021 21:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 30! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/charty-for-shortcuts/id1494386093?ls=1">Charty</a> by <a href="https://twitter.com/rodrigoaraujo">Rodrigo Araujo</a></li><li><a href="https://apps.apple.com/us/app/cone-live-color-picker/id1221305627?mt=8">Cone</a> by <a href="https://twitter.com/kushsolitary">Kushagra Agarwal</a></li><li><a href="https://minbrowser.org">MinBrowser</a> by <a href="https://twitter.com/MinBrowser">Ben Standaert</a></li></ul></li></ul><ul><li>WWDC Software and Hardware Predictions,</li><li>App Clips one year later,</li><li>In-App Purchases and External Payments,</li><li>How Can The App Store Be a Better Place for Us As Developers?</li><li>The Future of Objective-C</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Cryptography!</p><ol><li>AES, or the American Encryption Standard, is a suite of symmetric block cyphers that was selected as a part of an open process hosted by NIST and the US government from 1997 to 2000 to replace DES.</li></ol><ol start="2"><li>A one time pad is an early but very robust encryption technique, which can be uncrackable so long as the key on the pad is never re-used, is truly random, is longer than the plaintext, and is kept completely secret.</li></ol><ol start="3"><li>Symmetric key algorithms use the same cryptographic keys for both encryption and decryption, while asymmetric key algorithms make use of a public key and a private key to encrypt and decrypt information.</li></ol><ol start="4"><li>Unlike RSA which relies on large prime number factorization, Elliptic-curve cryptography makes use of a given elliptic curve’s geometric and algebraic properties, ultimately providing the same level of security as RSA with smaller keys.</li></ol><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-29</guid><title>Episode 29: Don't Do That</title><description>We discuss Basecamp's recent messups, and how not do that.</description><link>https://codecompletion.io/episodes/2021/ep-29</link><pubDate>Sun, 16 May 2021 01:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 29! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://adrian.schoenig.me/longplay/">Longplay</a> by <a href="https://twitter.com/nhawk">Adrian Schönig</a>,</li><li><a href="https://www.moneyflow.app">Money Flow</a> by <a href="https://twitter.com/romero_ios">Daniel Romero</a>, and</li><li><a href="https://proxyman.io">Proxyman</a> by <a href="https://twitter.com/_nghiatran">Nghia Tran</a>.</li></ul></li></ul><ul><li>Basecamp's mistake</li><li>The Epic vs Apple Trial</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Esoteric Programming Languages!</p><ol><li>Chef is a language designed to make a program look like a cooking recipe, with a stated goal that “Program recipes should not only generate valid output, but be easy to prepare and delicious”.</li></ol><ol start="2"><li>LOLCODE brings coders back to the early days of memes with keywords such as HAI, CAN HAS STDIO, and KTHXBYE, all phrases that may have come up as a caption for a lolcat image.</li></ol><ol start="3"><li>INTERCAL, short for "Compiler Language With No Pronounceable Acronym”, is an older parody language that satirizes aspects of the various programming languages of the time.</li></ol><ol start="4"><li>Inspired by a similarly sounding language, Brainfudge is a language that makes use of only 8 characters: !@#$%^&*; but otherwise uses the same syntax as its inspiration, BrainF*ck.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Spencer went first, followed by Ben. Let's see how they did!</p>

<blockquote>1. Chef is a language designed to make a program look like a cooking recipe, with a stated goal that “Program recipes should not only generate valid output, but be easy to prepare and delicious”.</blockquote>

<p>Both Spencer and Ben believed this to be true, which as a <em>code completion</em>, it was!</p>

<blockquote>2. LOLCODE brings coders back to the early days of memes with keywords such as HAI, CAN HAS STDIO, and KTHXBYE, all phrases that may have come up as a caption for a lolcat image.</blockquote>

<p>No one doubted the existance of LOLCODE either, since it was also a <em>code completion</em>!</p>

<blockquote>3. INTERCAL, short for "Compiler Language With No Pronounceable Acronym”, is an older parody language that satirizes aspects of the various programming languages of the time.</blockquote>

<p>Spencer doubted how crazy crazy programming languages could be, but this was a <em>code completion</em>!</p>

<p>Which means…</p>

<blockquote>4. Inspired by a similarly sounding language, Brainfudge is a language that makes use of only 8 characters: !@#$%^&*; but otherwise uses the same syntax as its inspiration, BrainF*ck.</blockquote>

<p>Ben correctly sussed out this <strong>compiler error</strong>! Although BrainF*ck is a real language, Brainfudge as described is not…</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://esolangs.org/wiki/Chef">Chef</a></li>
<li><a href="https://en.wikipedia.org/wiki/Esoteric_programming_language">Esoteric programming languages on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/Brainfuck">Brainf*ck on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/INTERCAL">INTERCAL on Wikipedia</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Mystiko</a>. <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Mystiko on the iMessage App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-28</guid><title>Episode 28: Host Spotlight: Spencer — I Don’t Plan, Man!</title><description>We are spotlight our very own host, Spencer Curtis, and learn how he got into teaching!</description><link>https://codecompletion.io/episodes/2021/ep-28</link><pubDate>Sat, 8 May 2021 19:15:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 28! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>How did you get into development?</li><li>Did you ever think you'd end up being a teacher?</li><li>What pushed you to keep learning about more advanced topics?</li><li>Did knowing your teachers help you get your first job?</li><li>What was the first app that you published on the App Store?</li><li>If you had unlimited time, what would you work on?<ul><li><a href="https://youtu.be/PZ7SevBiT5s">VFX Artists React to TRON</a></li><li><a href="https://youtu.be/T2-yhFTCCzY">TRON Remade</a></li></ul></li></ul><ul><li>WWDC/2021 wishlist?</li><li>What would you take up if tech was no longer an option?<ul><li><a href="https://podcast.explainitslowly.show/10">Explain it Slowly, "What is a stenographer?"</a></li></ul></li></ul><ul><li>Advice for budding programmers?</li><li>Advice for becoming a teacher?<ul><li><a href="https://www.youtube.com/watch?v=opqIa5Jiwuw&list=PLibNZv5Zd0dyCoQ6f4pdXUFnpAIlKgm3N">Explaining One Concept in 5 Levels of Difficulty playlist</a></li></ul></li></ul><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-27</guid><title>Episode 27: Spring Loaded Zoom Zoom</title><description>We discuss Apple's Spring Loaded event announcements.</description><link>https://codecompletion.io/episodes/2021/ep-27</link><pubDate>Tue, 27 Apr 2021 04:45:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 27! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://lighthouse16.com/quiet/">Quiet</a> by <a href="https://twitter.com/lighthouse16_hq">Peter Cammeraat</a>,</li><li><a href="https://apps.apple.com/us/app/id1441959317?ls=1">Mezzanine Theater Diary</a> by <a href="https://twitter.com/BenPackard">Ben Packard</a>, and</li><li><a href="https://apps.apple.com/us/app/home-inventory/id413564952?mt=12">Home Inventory</a> by <a href="https://twitter.com/DianeRHamilton">Diane Hamilton</a>.</li></ul></li></ul><ul><li>We review Apple's Spring Loaded event:<ul><li>New iMacs</li><li>Potential future iMac Pro</li><li>Where Apple will take the M1/M2/M1S/M1X</li><li>AirTags</li><li>New iPad Pros<ul><li><a href="https://www.youtube.com/watch?v=_fw_ptyy9GM">5G</a></li></ul></li><li>The new Apple TV 4K</li><li>Mac mini bumped with 10Gbase-T ethernet option</li><li>Lavender iPhone 12</li><li>Podcasting subscriptions</li><li>Apple Card Family and shared credit</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>In which order would Swift prioritize the following overloaded methods??</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
</code><code><span class="splashkeyword">func</span> processValue&lt;T: <span class="splashtype">BinaryFloatingPoint</span>&gt;(<span class="splashkeyword">_</span> value: <span class="splashtype">T</span>) <span class="splashcomment">// 1</span>
<span class="splashkeyword">func</span> processValue&lt;T: <span class="splashtype">BinaryFloatingPoint</span>&amp;<span class="splashtype">Decodable</span>&gt;(<span class="splashkeyword">_</span> value: <span class="splashtype">T</span>) <span class="splashcomment">// 2</span>
<span class="splashkeyword">func</span> processValue&lt;T: <span class="splashtype">Decodable</span>&gt;(<span class="splashkeyword">_</span> value: <span class="splashtype">T</span>) <span class="splashcomment">// 3</span>
<span class="splashkeyword">func</span> processValue(<span class="splashkeyword">_</span> value: <span class="splashtype">Double</span>) <span class="splashcomment">// 4</span>
<span class="splashkeyword">func</span> processValue&lt;T: <span class="splashtype">Numeric</span>&gt;(<span class="splashkeyword">_</span> value: <span class="splashtype">T</span>) <span class="splashcomment">// 5</span>

<span class="splashkeyword">let</span> value: <span class="splashtype">Double</span> = <span class="splashnumber">3.14</span>
<span class="splashcall">processValue</span>(value) <span class="splashcomment">// Which order would the swift compiler rank these methods in?</span>
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Ultra-wideband!</p><ol><li>Ultra-wideband, or UWB for short, is a specific technology for short-range, low-energy, high-bandwidth communication over a large portion of the radio spectrum.</li></ol><ol start="2"><li>Apple’s U1 chip can accurately position another U1 device within an omnidirectional field of view as long as the devices are within 100 feet of each other.</li></ol><ol start="3"><li>Formerly known as pulse radio, UWB works by generating radio energy at specific time intervals over a large bandwidth, where the polarity and timing of the pulse determine the data being transmitted.</li></ol><ol start="4"><li>Despite these devices not having a U1 chip, AirTags are compatible with iPhone SE, iPhone 6s or later so long as they are running iOS 14.5 or later.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando went first, followed by Ben. Let's see how they did!</p>

<blockquote>4. Despite these devices not having a U1 chip, AirTags are compatible with iPhone SE, iPhone 6s or later so long as they are running iOS 14.5 or later.</blockquote>

<p>Dimitri basically spoiled this one mid episode, making this an easy <em>code completion</em>!</p>

<blockquote>1. Ultra-wideband, or UWB for short, is a specific technology for short-range, low-energy, high-bandwidth communication over a large portion of the radio spectrum.</blockquote>

<p>No one was led astray by this basic definition, since it was also a <em>code completion</em>!</p>

<blockquote>2. Apple’s U1 chip can accurately position another U1 device within an omnidirectional field of view as long as the devices are within 100 feet of each other.</blockquote>

<p>Everyone trusted this to be fact, despite it being the <strong>compiler error</strong> all along! The U1 can't have an omnidirectional field of view, otherwise it wouldn't be able to tell where another device is! Not to mention it is only usable over much shorter distances…</p>

<p>Which means…</p>

<blockquote>3. Formerly known as pulse radio, UWB works by generating radio energy at specific time intervals over a large bandwidth, where the polarity and timing of the pulse determine the data being transmitted.</blockquote>

<p>Both Fernando and Ben were led astray by such <em>simple</em> physics, because this one was a plain old <em>code completion</em>!</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/Ultra-wideband">Ultra-wideband on Wikipedia</a></li>
<li><a href="https://www.apple.com/shop/buy-airtag/airtag">AirTag requirements</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Swiftly Built's <a href="https://www.eventbrite.com/e/swiftly-built-advanced-data-display-tickets-147152558263?aff=CodeCompletion">Advanced Data Display course</a>. Buy your ticket now on Eventbrite for one month of live iOS instruction starting on May 1st!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-26</guid><title>Episode 26: Building a Cable Museum</title><description>We discuss what we do with old tech, Apple's upcoming Spring Loaded event, and what we really want out of iPads.</description><link>https://codecompletion.io/episodes/2021/ep-26</link><pubDate>Mon, 19 Apr 2021 17:15:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 26! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://dronetrails.app">Drone Trails</a> by <a href="https://twitter.com/soupyn00dles">Rahul Ravindran</a>,</li><li><a href="https://newsbite.app">Newsbite</a> by <a href="https://twitter.com/chrisajenkins">Chris Jenkins</a>, and</li><li><a href="http://www.pkclsoft.com/wp/app/world-of-hex/">World of Hex</a> by <a href="https://twitter.com/PKCLsoft">Peter Easdown</a>.</li></ul></li></ul><ul><li>Dimitri's trade-in experience.</li><li>What to do with old devices and boxes.</li><li>Our predictions for this week's Spring Loaded Apple Event.</li><li>The need for better iPad stories rather than faster iPads.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: HDR Video!</p><ol><li>High dynamic range video expands on standard dynamic range by increasing not only the luminance, but also the bit depth and color volume.</li></ol><ol start="2"><li>Standard dynamic range video is defined according to a maximum luminance of 100 nits, limited by the capabilities of CRT-based display technology.</li></ol><ol start="3"><li>The Ultra HD Alliance defines a display as being HDR-capable only if it is able to reach a limited peak brightness of at least 1000 nits.</li></ol><ol start="4"><li>An HDR display is capable of displaying content mastered for any maximum brightness thanks to a technique called tone mapping.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Spencer went first, followed by Ben. Let's see how they did!</p>

<blockquote>1. High dynamic range video expands on standard dynamic range by increasing not only the luminance, but also the bit depth and color volume.</blockquote>

<p>Ben and Spencer believed this to be a <em>code completion</em>, which it was!</p>

<blockquote>2. Standard dynamic range video is defined according to a maximum luminance of 100 nits, limited by the capabilities of CRT-based display technology.</blockquote>

<p>No one was led astray by this, which is unfortunate (for Dimitri) since it was also a <em>code completion</em>!</p>

<blockquote>3. The Ultra HD Alliance defines a display as being HDR-capable only if it is able to reach a limited peak brightness of at least 1000 nits.</blockquote>

<p>Everyone trusted this to be fact, despite it being the <strong>compiler error</strong> all along! Turns out the requirements are a lot lower than that, or else most displays would not be HDR capable at all!</p>

<p>Which means…</p>

<blockquote>4. An HDR display is capable of displaying content mastered for any maximum brightness thanks to a technique called tone mapping.</blockquote>

<p>Both Spencer and Ben were led astray by the terminology, because this one was a plain old <em>code completion</em>!</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/High_dynamic_range#Visual">High Dynamic Range on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/Standard-dynamic-range_video">Standard Dynamic Range on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/High-dynamic-range_video">High Dynamic Range Video on Wikipedia</a></li>
<li><a href="https://gizmodo.com/how-dolby-vision-works-and-how-it-could-revolutionize-1594894563 ">How Dolby Vision Works, and How It Could Revolutionize TVs Forever</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Swiftly Built's <a href="https://www.eventbrite.com/e/swiftly-built-advanced-data-display-tickets-147152558263?aff=CodeCompletion">Advanced Data Display course</a>. Buy your ticket now on Eventbrite for one month of live iOS instruction starting on May 1st!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-25</guid><title>Episode 25: Subjective-C</title><description>We discuss the relevance of Objective-C for new developers.</description><link>https://codecompletion.io/episodes/2021/ep-25</link><pubDate>Thu, 15 Apr 2021 21:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 25! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://twitter.com/boundaudio">Bound Audio</a> by <a href="https://twitter.com/timbueno">Tim Bueno</a>,</li><li><a href="https://moneycoach.ai">MoneyCoach</a> by <a href="https://twitter.com/PerjanDuro">Perjan Duro</a>, and</li><li><a href="https://apps.apple.com/us/app/attendance2/id536206472">Attendance2</a> by <a href="https://twitter.com/davereed">Dave Reed</a>.</li></ul></li></ul><ul><li>The relevance of Objective-C for new and existing developers.</li><li>The complexity of Swift.</li><li>SwiftUI vs UIKit.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Can you spot and fix the memory leak?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
8
9
10
11
12
</code><code><span class="splashkeyword">class</span> DelayedTask {
    <span class="splashkeyword">var</span> complete = <span class="splashkeyword">false
    var</span> task: <span class="splashtype">DispatchWorkItem</span>?
    
    <span class="splashkeyword">func</span> configure() {
        task = <span class="splashtype">DispatchWorkItem</span> {
            <span class="splashtype">DispatchQueue</span>.<span class="splashproperty">main</span>.<span class="splashcall">asyncAfter</span>(.<span class="splashcall">now</span>() + <span class="splashnumber">5</span>) { [<span class="splashkeyword">weak self</span>] <span class="splashkeyword">in
                self</span>?.<span class="splashproperty">complete</span> = <span class="splashkeyword">true</span>
            }
        }
    }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Objective-C ARC!</p><ol><li>Much like Swift, ARC can be configured to operate on CoreFoundation types in Objective-C code using the option -f-objc-arc-cftypes at compile time.</li></ol><ol start="2"><li>Automatic Reference Counting was originally called Automatic Retain Release, abbreviated as ARR, and was ultimately changed to ARC before release.</li></ol><ol start="3"><li>Unlike with ARC, Objective-C Garbage Collection required users to implement -finalize rather than -dealloc for object cleanup.</li></ol><ol start="4"><li>Although they were introduced with ARC, @autoreleasepool blocks can also be used in code where ARC is disabled since it offers a performance improvement.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando went first, followed by Ben and Spencer. Let's see how they did!</p>

<blockquote>4. Although they were introduced with ARC, @autoreleasepool blocks can also be used in code where ARC is disabled since it offers a performance improvement.</blockquote>

<p>Ben and Spencer believed this to be true, but Fernando thought it must be wrong… which he was wrong to think, because it was a <em>code completion</em>!</p>

<blockquote>3. Unlike with ARC, Objective-C Garbage Collection required users to implement -finalize rather than -dealloc for object cleanup.</blockquote>

<p>Everyone thought this was plausible, since it was also a <em>code completion</em>!</p>

<blockquote>2. Automatic Reference Counting was originally called Automatic Retain Release, abbreviated as ARR, and was ultimately changed to ARC before release.</blockquote>

<p>No one was tricked by the pirate sounding accronym, because it is also a <em>code completion</em>!</p>

<p>Which means…</p>

<blockquote>1. Much like Swift, ARC can be configured to operate on CoreFoundation types in Objective-C code using the option -f-objc-arc-cftypes at compile time.</blockquote>

<p>Both Ben and Spencer trusted their gut, which payed off since this was the <strong>compiler error</strong>! Only Swift got this magical functionality through its C overlay, which Objective-C can't participate in to this day…</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://opensource.apple.com/source/objc4/objc4-493.11/runtime/objc-arr.mm">Objective-C ARR source code</a></li>
<li><a href="https://developer.apple.com/documentation/objectivec/nsobject/1418513-finalize?language=objc"><code>-[NSObject finalize]</code></a></li>
<li><a href="https://developer.apple.com/documentation/foundation/nsautoreleasepool "><code>NSAutoreleasePool</code></a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://twitter.com/UnderdogDevs">Underdog Devs</a>' Spring Into Swift event. Follow <a href="https://twitter.com/UnderdogDevs">@UnderdogDevs</a> on Twitter to learn more and stay tuned for more information about the <a href="https://twitter.com/hashtag/SpringIntoSwift">Spring Into Swift</a> event!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-24</guid><title>Episode 24: Shark Proof Cabling</title><description>We discuss recent rumors about Apple TV, HomeKit, and potential new Macs.</description><link>https://codecompletion.io/episodes/2021/ep-24</link><pubDate>Thu, 1 Apr 2021 16:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 24! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/highlighted-book-highlighter/id1480216009">Highlighted</a> by <a href="https://twitter.com/stuhecdamir">Damir Stuhec</a>,</li><li><a href="https://apps.apple.com/us/app/pro-wrestling-simulator-2021/id1513020607">Pro Wrestling Simulator 2021</a> by <a href="https://twitter.com/j_t_saeed">James Saeed</a>, and</li><li><a href="https://apps.apple.com/app/id1468495939">Replica</a> by <a href="https://twitter.com/martinho_t">Tiago Martinho</a>.</li></ul></li></ul><ul><li>Rumors around Apple TV, HomePod, and future Apple Silicon Macs.</li><li>The state of Siri and HomeKit.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Undersea Cabling!</p><ol><li>A colony of electric eels was responsible in 2013 for disturbing the operation of fiber optic cabling resulting in significant packet loss to the islands of French Polynesia.</li></ol><ol start="2"><li>In 2014, a security camera revealed that sharks were biting undersea fiber optic cabling, presumably attracted to the magnetic field emitted by the high voltage power required for optical repeaters.</li></ol><ol start="3"><li>An undersea cable is technically referred as a submarine communications cable, and unlike the name implies, has little to do with submarines, but the cables were used as early as the 1850’s with the telegraph.</li></ol><ol start="4"><li>It took more than a year to construct and install the MAREA cable, a 4000 mile cable connecting Spain to the United States, that can transmit up to 200 terabits per second.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Ben went first, followed by Spencer. Let's see how they did!</p>

<blockquote>4. It took more than a year to construct and install the MAREA cable, a 4000 mile cable connecting Spain to the United States, that can transmit up to 200 terabits per second.</blockquote>

<p>Both our completionists believed this to be true, because it was a <em>code completion</em>!</p>

<blockquote>3. An undersea cable is technically referred as a submarine communications cable, and unlike the name implies, has little to do with submarines, but the cables were used as early as the 1850’s with the telegraph.</blockquote>

<p>Ben had doubts about the long history of submarine communications cables, but this was also a <em>code completion</em>!</p>

<blockquote>2. In 2014, a security camera revealed that sharks were biting undersea fiber optic cabling, presumably attracted to the magnetic field emitted by the high voltage power required for optical repeaters.</blockquote>

<p>Spencer thought they would have thought about sharks eating cables before, but they didn't, since it was also a <em>code completion</em>!</p>

<p>Which means…</p>

<blockquote>1. A colony of electric eels was responsible in 2013 for disturbing the operation of fiber optic cabling resulting in significant packet loss to the islands of French Polynesia.</blockquote>

<p>That's right, the <strong>compiler error</strong>! Turns out electric eels were impacted by some undersea cabling, but they never caused such an incident before…</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://www.researchgate.net/publication/230165374_Sub-sea_power_cables_and_migration_behaviour_of_the_European_eel">Sub-sea power cables and migration behaviour of the European eel</a></li>
<li><a href="https://www.theguardian.com/technology/2014/aug/14/google-undersea-fibre-optic-cables-shark-attacks">Shark Attacks on Fiber Optic Cables</a></li>
<li><a href="https://en.wikipedia.org/wiki/Submarine_communications_cable">Submarine communications cable on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/MAREA">MAREA on Wikipedia</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-23</guid><title>Episode 23: Fernando will Host Your Backups (* &lt;4TB only)</title><description>We discuss each of our backup strategies, and difficulties managing them.</description><link>https://codecompletion.io/episodes/2021/ep-23</link><pubDate>Tue, 23 Mar 2021 17:10:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 23! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://codecompletion.io/jointheclub">Join</a> the Code Completion Club at <a href="https://codecompletion.io/jointheclub">https://codecompletion.io/jointheclub</a>!</li><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://www.relateios.app">Relate</a> by <a href="https://twitter.com/thesamcoe">Samuel Coe</a>,</li><li><a href="https://github.com/SamusAranX/MinimalMIDIPlayer">MinimalMIDIPlayer</a> by <a href="https://twitter.com/SamusAranX">Peter</a>, and</li><li><a href="https://simonemontalto.com/projects/book-track">Book Track</a> by <a href="https://twitter.com/SimoneMontalto">Simone Montalto</a>.</li></ul></li></ul><ul><li>What we each do for backups.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: RAID!</p><ol><li>RAID exists in 7 standard levels, 0 through 6, all of which implement striping in various configurations, except for RAID 1 which implements a full mirror of the data set instead of using striping.</li></ol><ol start="2"><li>Originally referred to as “Redundant Array of Inexpensive Disks”, RAID was renamed to “Redundant Array of Independent Disks” by industry manufacturers.</li></ol><ol start="3"><li>Despite the existence of standardized RAID levels, implementations of those same RAID levels are completely proprietary, and no interoperability between major manufacturers currently exists.</li></ol><ol start="4"><li>A cousin of RAID, MAID or Massive Array of Idle Drives, is an architecture that uses hundreds of drives, where latencies can be very high, but operational costs may be more manageable since not every drive needs to be online at any given time.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Spencer went first, followed by Fernando. Let's see how they did!</p>

<blockquote>4. A cousin of RAID, MAID or Massive Array of Idle Drives, is an architecture that uses hundreds of drives, where latencies can be very high, but operational costs may be more manageable since not every drive needs to be online at any given time.</blockquote>

<p>Fernando wasn't so sure about this one being true, but it was a <em>code completion</em>!</p>

<blockquote>3. Despite the existence of standardized RAID levels, implementations of those same RAID levels are completely proprietary, and no interoperability between major manufacturers currently exists.</blockquote>

<p>Both our completionists believed this, and so did Dimitri! Until he looked into it, because it was the <strong>compiler error</strong>! Turns out the Disk Data Format is a standardized format just for this use case!</p>

<p>Which means…</p>

<blockquote>2. Originally referred to as “Redundant Array of Inexpensive Disks”, RAID was renamed to “Redundant Array of Independent Disks” by industry manufacturers.</blockquote>

<p>Both our completionists weren't phased by the odd naming, since it was a <em>code completion</em>.</p>

<blockquote>1. RAID exists in 7 standard levels, 0 through 6, all of which implement striping in various configurations, except for RAID 1 which implements a full mirror of the data set instead of using striping.</blockquote>

<p>Spencer had doubts, but those doubts led him astray, since it was also a <em>code completion</em>!</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/RAID">RAID on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/Standard_RAID_levels">Standard RAID levels on Wikipedia</a></li>
<li><a href="https://en.wikipedia.org/wiki/Non-RAID_drive_architectures#MAID">MAID on Wikipedia</a></li>
<li><a href="https://www.snia.org/tech_activities/standards/curr_standards/ddf">Disk Data Format Specification</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://twitter.com/UnderdogDevs">Underdog Devs</a>' Spring Into Swift event. Follow <a href="https://twitter.com/UnderdogDevs">@UnderdogDevs</a> on Twitter to learn more and stay tuned for more information about the <a href="https://twitter.com/hashtag/SpringIntoSwift">Spring Into Swift</a> event!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-22</guid><title>Episode 22: Not a Soapbox</title><description>We discuss Fernando's new course and alternative ways of leveing up as a developer.</description><link>https://codecompletion.io/episodes/2021/ep-22</link><pubDate>Mon, 15 Mar 2021 18:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 22! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/print-to-size/id949490225?ign-mpt=uo%3D4">Print to Size</a> by <a href="https://twitter.com/sebmolines">Seb</a>,</li><li><a href="https://coppiceapp.com">Coppice</a> by <a href="https://twitter.com/pilky">Martin Pilkington</a>, and</li><li><a href="https://tumult.com/hype/">Tumult Hype</a> by <a href="https://twitter.com/jmfd">Jonathan Deutsch</a>.</li></ul></li></ul><ul><li>Fernando's New Course.</li><li>Teaching and Learning iOS Development.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: FireWire!</p><ol><li>FireWire comes in 3 protocol flavors: FireWire 400 over a 4-pin connector, FireWire 600 over a 6-pin connector, and FireWire 800 over a 9-pin connector.</li></ol><ol start="2"><li>The technology behind FireWire, known as IEEE 1394, was not only used in consumer electronics, but also automobiles, military vehicles, and even satellites.</li></ol><ol start="3"><li>FireWire was expected to reach speeds up to 6.4 Gbps over single mode fiber, but development was largely halted after 2010, and fully withdrawn in 2013.</li></ol><ol start="4"><li>Unlike USB where these is a single host to the topology of connected devices, FireWire implements a pure peer-to-peer network, allowing for multiple hosts and devices to share the same bus for communication.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Ben went first, followed by Fernando. Let's see how they did!</p>

<blockquote>4. Unlike USB where these is a single host to the topology of connected devices, FireWire implements a pure peer-to-peer network, allowing for multiple hosts and devices to share the same bus for communication.</blockquote>

<p>Both our completionists trusted this to be fact, which it was since it is a <em>code completion</em>!</p>

<blockquote>2. The technology behind FireWire, known as IEEE 1394, was not only used in consumer electronics, but also automobiles, military vehicles, and even satellites.</blockquote>

<p>Neither of them was tricked by this one either as it was also a <em>code completion</em>!</p>

<blockquote>3. FireWire was expected to reach speeds up to 6.4 Gbps over single mode fiber, but development was largely halted after 2010, and fully withdrawn in 2013.</blockquote>

<p>Ben doubted this one, but was deniged his right to change his mind, since it was a <em>code completion</em>!</p>

<p>Which means…</p>

<blockquote>1. FireWire comes in 3 protocol flavors: FireWire 400 over a 4-pin connector, FireWire 600 over a 6-pin connector, and FireWire 800 over a 9-pin connector.</blockquote>

<p>You guess it, and so did Fernando: the <strong>compiler error</strong>!</p>

<h3>Learn More →</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/IEEE_1394">IEEE 1394 on Wikipedia</a></li>
</ul>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-21</guid><title>Episode 21: I Fear For My Wallet</title><description>We make predictions for Apple products in 2021, and review those that were released last year!</description><link>https://codecompletion.io/episodes/2021/ep-21</link><pubDate>Wed, 24 Feb 2021 17:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 21! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Indie App Spotlight, with three apps for you to check out:<ul><li><a href="https://apps.apple.com/app/thirstic-smart-water-tracker/id1471500028">Thirstic</a> by <a href="https://twitter.com/ersjoh">Johannes Erschbamer</a>,</li><li><a href="https://apps.apple.com/us/app/memorypie/id1071872226">MemoryPie</a> by <a href="https://twitter.com/literalPie">Ben Kindle</a>, and</li><li><a href="https://sparkleapp.com/">Sparkle</a> by <a href="https://twitter.com/dannyturmoils">Daniele Trambusti</a> and <a href="https://twitter.com/duncanwilcox">Duncan Wilcox</a>.</li></ul></li></ul><ul><li>Predictions for 2021.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What built-in way that doesn't require the use of an internet connection can you use to get documentation on many C functions like  <code>malloc()</code>?</blockquote><pre><code class="splashlineNumbers">1
</code><code>void *myQuoteObjectUnquote = <span class="splashcall">malloc</span>(<span class="splashnumber">8</span>);
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Apple releases in 2020!</p><ol><li>March of 2020 saw the release of many new updates, including the Powerbeats: a low cost wired version of the Powerbeats Pro and an upgrade to the Powerbeats 3.</li></ol><ol start="2"><li>The Mac mini was updated not once, but three times in 2020, offering lower-priced storage options back in March, a limited release Developer Transition Kit in June, followed by the much-anticipated M1 transition in November.</li></ol><ol start="3"><li>Also updated twice in 2020, the March update of the MacBook Air did away with the rose gold color option, but replaced the keyboard, introducing TouchID without a TouchBar for the first time.</li></ol><ol start="4"><li>In true Mac Pro fashion, Apple kept its promise and released Apple Fitness+ before the end of 2020, completing Apple’s Apple One offering, announced back in September.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Johnny went first, followed by Spencer. Let's see how they did!</p>

<blockquote>1. March of 2020 saw the release of many new updates, including the Powerbeats: a low cost wired version of the Powerbeats Pro and an upgrade to the Powerbeats 3.</blockquote>

<p>Spencer wasn't so sure Powerbeats got updates, but they did, making this a <em>code completion</em>! <a href="https://www.macrumors.com/guide/powerbeats-4/">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. The Mac mini was updated not once, but three times in 2020, offering lower-priced storage options back in March, a limited release Developer Transition Kit in June, followed by the much-anticipated M1 transition in November.</blockquote>

<p>Both of our completionists believed this to be possible, which was a good thing since it was a <em>code completion</em>! <a href="https://www.apple.com/newsroom/2020/03/new-macbook-air-has-more-to-love-and-is-now-just-999/">Learn&nbsp;More&nbsp;→</a> <a href="https://en.wikipedia.org/wiki/Developer_Transition_Kit">More&nbsp;→</a> <a href="https://www.apple.com/newsroom/2020/11/introducing-the-next-generation-of-mac/">More&nbsp;→</a></p>

<blockquote>3. Also updated twice in 2020, the March update of the MacBook Air did away with the rose gold color option, but replaced the keyboard, introducing TouchID without a TouchBar for the first time.</blockquote>

<p>Johnny doubted this one, which was the right move, since it was the <strong>compiler error</strong>! <a href="https://www.apple.com/newsroom/2020/03/new-macbook-air-has-more-to-love-and-is-now-just-999/">Learn&nbsp;More&nbsp;→</a></p>

<p>Which means…</p>

<blockquote>4. In true Mac Pro fashion, Apple kept its promise and released Apple Fitness+ before the end of 2020, completing Apple’s Apple One offering, announced back in September.</blockquote>

<p>You guess it! A <em>code completion</em>! <a href="https://www.apple.com/newsroom/2020/12/apple-fitness-plus-the-future-of-fitness-launches-december-14/">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2021/ep-20</guid><title>Episode 20: Don't Be Evil</title><description>We take a look at our Indie App Showcase, and discuss the ever important topic of ethics in software and tech!</description><link>https://codecompletion.io/episodes/2021/ep-20</link><pubDate>Mon, 1 Feb 2021 20:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 20! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Indie App Spotlight, with two apps for you to check out:<ul><li><a href="https://apps.apple.com/us/app/id1496421647">Code Conf</a> by <a href="https://twitter.com/PawelMadejCK">Paweł Madej</a>, and</li><li><a href="https://apps.apple.com/gb/app/hour-blocks-day-planner/id1456275153">Hour Blocks</a> by <a href="https://twitter.com/j_t_saeed">James Saeed</a>.</li></ul></li></ul><ul><li>Ethics in Software and Tech.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Uber Lawsuits!</p><ol><li>Lyft’s CEO sued Uber for allegedly and on multiple occasions sending escorts to his private home, as a supposed retaliation and intimidation tactic against Lyft’s then-expansion into New York City, which was settled for $2M.</li></ol><ol start="2"><li>An antitrust lawsuit was filed against Uber by a passenger claiming collusion with drivers to raise prices, which later got dramatic when Uber privately investigated said passenger using “fraudulent and arguably criminal conduct”.</li></ol><ol start="3"><li>A former Uber driver filed a lawsuit against Uber regarding its star rating system, which the plaintiff claims disproportionately leads to the firing of people who are not white or who speak with accents.</li></ol><ol start="4"><li>As recently as August, California's labor commissioner is once again suing Uber and Lyft, claiming the companies are stealing wages from drivers by "willfully misclassifying" them as contractors instead of employees.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Spencer gracefully went first, followed by Ben. Let's see how they did!</p>

<blockquote>1. Lyft’s CEO sued Uber for allegedly and on multiple occasions sending escorts to his private home, as a supposed retaliation and intimidation tactic against Lyft’s then-expansion into New York City, which was settled for $2M.</blockquote>

<p>Both of our completionists believed this to be possible, which is unfortunate because it was the <strong>compiler error</strong>! This is what happens when you believe in urban legends long enough to research them, only to discover there was no truth to them after all...</p>

<p>Which means…</p>

<blockquote>2. An antitrust lawsuit was filed against Uber by a passenger claiming collusion with drivers to raise prices, which later got dramatic when Uber privately investigated said passenger using “fraudulent and arguably criminal conduct”.</blockquote>

<p>Both Spencer ans Ben thought this was a little too crazy to be true, but it was a <em>code completion</em> after all! <a href="https://money.cnn.com/2016/08/11/technology/uber-lawsuits/">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. A former Uber driver filed a lawsuit against Uber regarding its star rating system, which the plaintiff claims disproportionately leads to the firing of people who are not white or who speak with accents.</blockquote>

<p>This was also a <em>code completion</em>! <a href="https://www.npr.org/2020/10/26/927851281/uber-fires-drivers-based-on-racially-biased-star-rating-system-lawsuit-claims">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>4. As recently as August, California's labor commissioner is once again suing Uber and Lyft, claiming the companies are stealing wages from drivers by "willfully misclassifying" them as contractors instead of employees.</blockquote>

<p>You guessed it! A <em>code completion</em>! <a href="https://www.businessinsider.com/uber-lyft-sued-again-in-california-over-driver-classification-2020-8">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-19</guid><title>Episode 19: SAD!</title><description>We introduce Indie App Showcase, discuss GitHub's new features, and open source projects, followed by a Compiler Error all about Thunderbolt!</description><link>https://codecompletion.io/episodes/2020/ep-19</link><pubDate>Sat, 19 Dec 2020 19:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 19! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li><a href="https://apps.apple.com/us/app/opus-one-daily-planner/id941852977">Opus One</a> by <a href="https://twitter.com/joseines75">Jose Cantu</a> in our new Indie App Spotlight.</li><li><a href="https://github.blog/2020-12-08-new-from-universe-2020-dark-mode-github-sponsors-for-companies-and-more/">New features</a> coming to GitHub: Dark Mode, Corporate sponsorships, auto-merging pull requests, and Discussions.</li><li>Running an Open Source repo.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Thunderbolt!</p><ol><li>USB4 consolidates various USB transfer modes introduced over the years by basing itself on the Thunderbolt 3 protocol, though host-support for tunneling existing Thunderbolt devices over a USB4 port is optional.</li></ol><ol start="2"><li>Much like Thunderbolt 3, demonstration versions of Light Peak used a modified USB port, being run from a prototype Mac Pro logic board, transmitting data over a 30-meter optical-fiber cable.</li></ol><ol start="3"><li>Thunderbolt 1, 2, and 3 can support up to 6 daisy chained devices, however devices that can make more than one downstream Thunderbolt port available will require a Thunderbolt 4 compatible computer.</li></ol><ol start="4"><li>The copper variation of Light Peak was co-developed by Apple and Intel, with Apple trademarking the term Thunderbolt, though the trademark was later transferred to Intel.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando refused to go first, so Ben took the lead, followed by Fernando and Spencer. Let's see how they did!</p>

<blockquote>4. The copper variation of Light Peak was co-developed by Apple and Intel, with Apple trademarking the term Thunderbolt, though the trademark was later transferred to Intel.</blockquote>

<p>None of our completionists fell for this one which was a <em>code completion</em>! <a href="http://www.appleinsider.com/articles/11/05/20/thunderbolt_trademark_rights_will_be_transferred_from_apple_to_intel.html">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Much like Thunderbolt 3, demonstration versions of Light Peak used a modified USB port, being run from a prototype Mac Pro logic board, transmitting data over a 30-meter optical-fiber cable.</blockquote>

<p>All our completionists were right to determine that this was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Thunderbolt_(interface)#Introduction">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. USB4 consolidates various USB transfer modes introduced over the years by basing itself on the Thunderbolt 3 protocol, though host-support for tunneling existing Thunderbolt devices over a USB4 port is optional.</blockquote>

<p>Fernando charted his own path, believing this one to cause the error, but it was a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/USB4">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>3. Thunderbolt 1, 2, and 3 can support up to 6 daisy chained devices, however devices that can make more than one downstream Thunderbolt port available will require a Thunderbolt 4 compatible computer.</blockquote>

<p>…which Ben and Spencer both were suspect of, because it is the <strong>compiler error</strong>! Thunderbolt 3 technically supported hubs all along, but it wasn't until now that they became available! <a href="https://eshop.macsales.com/shop/owc-thunderbolt-hub">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-18</guid><title>Episode 18: Host Spotlight: Johnny — Always be Learning</title><description>We are spotlight our very own host, Johnny Hicks, and learn how he got into development!</description><link>https://codecompletion.io/episodes/2020/ep-18</link><pubDate>Wed, 9 Dec 2020 01:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 18! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>“How did you get into development?”</li><li>“Did you have any tech fascination before you started programming?”</li><li>“What was it like going from a bootcamp to your internship?”</li><li>“Were you able to get mentorship when you started as a junior?”</li><li>“What advice would you give when you need to ask questions or get help from your senior developers?”</li><li>“What are your current interests as a developer?”</li><li>“What were your thoughts seeing a WWDC session for the first time?”</li><li>“Are there any facets of your everyday life that have changed since you became a developer?”</li><li>“Assuming you had an unlimited budget and time, what would you dive into next?”</li><li>“How did you transition from Junior to Mid-level developer to instructor, etc?”</li><li>“Any final advice?”</li></ul><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-17</guid><title>Episode 17: It would be nicer if things were nicer</title><description>We discuss Spencer's MacBook Air setup woes, the new 15% App Store rate, and which frameworks you should use when diving into Mac development!</description><link>https://codecompletion.io/episodes/2020/ep-17</link><pubDate>Mon, 30 Nov 2020 22:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 17! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Spencer's MacBook Air setup woes.</li><li>The App Store's new 15% commission rate for small businesses.</li><li>Differences between AppKit, UIKit, and the various flavors of SwiftUI when starting a new Mac app.</li></ul><h2>⚠️ Compiler Error</h2><p>This week's theme: Esoteric Objective-C “standard library” features!</p><ol><li>Tagged pointers encode their entire object into the non-addressing bits of a pointer, ultimately allowing faster allocations for specific hard-coded classes known by the runtime.</li></ol><ol start="2"><li>NSZone’s primary purpose was to allow objects to be allocated within the same memory page, so swap would be fast, and those objects could be free’d in one go.</li></ol><ol start="3"><li>NSProxy is a non-NSObject base class that allows for message dispatch to be easily redirected to another object, but does not have an initializer implemented for subclasses to fall back on.</li></ol><ol start="4"><li><strong>NSAtom is a special class that is ultimately the boolean-opposite to nil: any message you send it will always return an </strong>NSAtom, which is very intentionally equal to 1.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando went first, followed by Spencer. Let's see how they did!</p>

<blockquote>1. Tagged pointers encode their entire object into the non-addressing bits of a pointer, ultimately allowing faster allocations for specific hard-coded classes known by the runtime.</blockquote>

<p>Both of our completionists thought this was true, but it was unfortunately the <strong>compiler error</strong>! Turns out the entire addressing bit-space is used for the payload, and any class can request a tag at runtime! <a href="https://www.mikeash.com/pyblog/friday-qa-2012-07-27-lets-build-tagged-pointers.html">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. NSZone’s primary purpose was to allow objects to be allocated within the same memory page, so swap would be fast, and those objects could be free’d in one go.</blockquote>

<p>Spencer fell for this one, which was actually a <em>code completion</em>! <a href="http://cocoadev.github.io/NSZone/">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. NSProxy is a non-NSObject base class that allows for message dispatch to be easily redirected to another object, but does not have an initializer implemented for subclasses to fall back on.</blockquote>

<p>Both of our completionists thought this was a code completion… because it was a <em>code completion</em>! <a href="https://www.mikeash.com/pyblog/friday-qa-2013-10-25-nsobject-the-class-and-the-protocol.html">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. __NSAtom is a special class that is ultimately the boolean-opposite to nil: any message you send it will always return an __NSAtom, which is very intentionally equal to 1.</blockquote>

<p>…which Fernando was unable to continue his streak with, because it was also a <em>code completion</em>! <a href="https://brian-webster.tumblr.com/post/102637339374/the-mystery-of-the-crashing-nspredicate">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-16</guid><title>Episode 16: It's mini in the non-trademarkable kind of way</title><description>We discuss Apple's recent mini products, Big Sur's release, and Fernando's new project!</description><link>https://codecompletion.io/episodes/2020/ep-16</link><pubDate>Wed, 25 Nov 2020 19:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 16! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>More thoughts on the iPhone 12 mini, Mac mini, and HomePod mini.</li><li>Big Sur's release, and the launch issues that came about.</li><li>Fernando's new project, supplemental dev skills, and interview standardization.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What etymology lead to the random number generator of choice on Apple platforms being named <code>arc4random()</code>?</blockquote><pre><code class="splashlineNumbers">1
2
3
4
5
6
7
</code><code><span class="splashkeyword">import</span> Darwin

<span class="splashkeyword">public func</span> arc4random() -&gt; <span class="splashtype">UInt32</span>

<span class="splashkeyword">public func</span> arc4random_buf(<span class="splashkeyword">_</span> buffer: <span class="splashtype">UnsafeMutableRawPointer</span>!, <span class="splashkeyword">_</span> numberOfBytes: <span class="splashtype">Int</span>)

<span class="splashkeyword">public func</span> arc4random_uniform(<span class="splashkeyword">_</span> upperBound: <span class="splashtype">UInt32</span>) -&gt; <span class="splashtype">UInt32</span>
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>We all know and love Swift, which owes its inspiration from Objective-C, which owes <em>its</em> inspiration from Smalltalk!</p><ol><li>Unlike many languages, Smalltalk has no if statement, let alone other control structures. Control flow is instead implemented as methods sent to objects.</li></ol><ol start="2"><li>Like Objective-C, Smalltalk makes use of argument labels on each of a methods arguments, but does not wrap every method call in square brackets.</li></ol><ol start="3"><li>Only six "keywords" are reserved in Smalltalk: true, false, nil, self, super, and thisContext, which are called pseudo-variables in the language.</li></ol><ol start="4"><li>Like many languages in the 80s, Smalltalk uses the dot character to access properties, the semicolon to delineate statements, and curly brackets to denote blocks.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Ben went first, followed by Fernando. Let's see how they did!</p>

<blockquote>2. Like Objective-C, Smalltalk makes use of argument labels on each of a methods arguments, but does not wrap every method call in square brackets.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Smalltalk#Messages">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Only six "keywords" are reserved in Smalltalk: true, false, nil, self, super, and thisContext, which are called pseudo-variables in the language.</blockquote>

<p>They both thought this was also factual, and it is also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Smalltalk#Syntax">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. Unlike many languages, Smalltalk has no if statement, let alone other control structures. Control flow is instead implemented as methods sent to objects.</blockquote>

<p>Ben didn't think Smalltalk was weird enough, but it turns out it is, because was a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Smalltalk#Control_structures">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. Like many languages in the 80s, Smalltalk uses the dot character to access properties, the semicolon to delineate statements, and curly brackets to denote blocks.</blockquote>

<p>…which Fernando was rightfully skeptical of, because this was the <strong>compiler error</strong>! Smalltalk uses the dot character to selineate statements, the semicolon to cascate method calls, and square brackets to denote blocks! <a href="https://en.wikipedia.org/wiki/Smalltalk#Expressions">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-15</guid><title>Episode 15: Mini mini M1ni</title><description>We discuss Apple's recent announcements, including the iPhones 12, what we really want form a mini, and the new M1 chip!</description><link>https://codecompletion.io/episodes/2020/ep-15</link><pubDate>Mon, 16 Nov 2020 23:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 15! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>The iPhones, especially the desires around a perfect iPhone mini.</li><li>The M1 processor.</li></ul><h2>🚧 #CompleteTheCode</h2><p><em>Last</em> week's <em>#CompleteTheCode</em>:</p><blockquote>What key API allows for Swift Arrays and Dictionaries to implement Copy-on-Write (CoW)?</blockquote><pre><code class="splashlineNumbers">1
2
3
</code><code><span class="splashkeyword">let</span> firstArray = [<span class="splashnumber">0</span>, <span class="splashnumber">1</span>, <span class="splashnumber">2</span>]
<span class="splashkeyword">var</span> secondArray = firstArray <span class="splashcomment">// The underlying storage is still shared here</span>
secondArray.<span class="splashcall">append</span>(<span class="splashnumber">3</span>) <span class="splashcomment">// The underlying storage is copied first, then updated</span>
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><p>This week's theme: Languages inspired by Objective-C!</p><ol><li>Hoping to improve Javascript, Objective-J was invented as a way of bringing Objective-C’s class and message sending syntax and more over to web development, but without the *’s.</li></ol><ol start="2"><li>Objective-C++ is a variant of Objective-C that adds the same extensions to C++ as it does to C, effectively duplicating the implementations of classes, exception handling, and closures.</li></ol><ol start="3"><li>Objective-C# is another variant of Objective-C started in 2009 after the success of the iPhone hoping to bring dynamic dispatch to C#, but was not actively maintained.</li></ol><ol start="4"><li>Inspired by an off-hand remark, Objective-Rust is a toy language recently developed that adds some Objective-C syntax to Rust, for better interoperability between the two languages.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Johnny went first, followed by Spencer. Let's see how they did!</p>

<blockquote>2. Objective-C++ is a variant of Objective-C that adds the same extensions to C++ as it does to C, effectively duplicating the implementations of classes, exception handling, and closures.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Objective-C#Objective-C++">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>4. Inspired by an off-hand remark, Objective-Rust is a toy language recently developed that adds some Objective-C syntax to Rust, for better interoperability between the two languages.</blockquote>

<p>They both thought this was also factual, and it is also a <em>code completion</em>! <a href="https://belkadan.com/blog/2020/08/Objective-Rust/">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. Hoping to improve Javascript, Objective-J was invented as a way of bringing Objective-C’s class and message sending syntax and more over to web development, but without the *’s.</blockquote>

<p>Spencer wasn't so sure about this one, but unlike last week, this was still a <em>code completion</em>! <a href="https://www.cappuccino.dev/learn/objective-j.html">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>3. Objective-C# is another variant of Objective-C started in 2009 after the success of the iPhone hoping to bring dynamic dispatch to C#, but was not actively maintained.</blockquote>

<p>…which Johnny was right to choose because this was the <strong>compiler error</strong>! As far as we know, C# already has many of the features that would have been desirable from Objective-C, so no one has made a serious attempt at Objective-C#… yet… <a href="https://en.wikipedia.org/wiki/C_Sharp_(programming_language)">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Mystiko</a>. <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Mystiko on the iMessage App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-14</guid><title>Episode 14: We Broke The First Rule of Dev Club</title><description>We predict the announcements to this week's One More Thing event, then take a deep dive into interviewing like a pro!</description><link>https://codecompletion.io/episodes/2020/ep-14</link><pubDate>Wed, 11 Nov 2020 19:11:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 14! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>What Apple could announce at the One More Time event.</li><li>How to nail an interview like a pro.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What key API allows for Swift Arrays and Dictionaries to implement Copy-on-Write (CoW)?</blockquote><pre><code class="splashlineNumbers">1
2
3
</code><code><span class="splashkeyword">let</span> firstArray = [<span class="splashnumber">0</span>, <span class="splashnumber">1</span>, <span class="splashnumber">2</span>]
<span class="splashkeyword">var</span> secondArray = firstArray <span class="splashcomment">// The underlying storage is still shared here</span>
secondArray.<span class="splashcall">append</span>(<span class="splashnumber">3</span>) <span class="splashcomment">// The underlying storage is copied first, then updated</span>
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Neuralsort makes use of a convolutional neural network to sort at O(2n) speeds on average, though the worst case can take quadratic time.</li></ol><ol start="2"><li>Spaghetti Sort is capable of sorting its contents at O(n) speeds even in the worst of cases, but requires a quadratic amount of memory in the process.</li></ol><ol start="3"><li>Bogosort uses the power of random shuffling to achieve a computational complexity of O(n) in the best of cases, but is unfortunately not stable in the process.</li></ol><ol start="4"><li>Named after Tim, Timsort is used in Swift 5 to perform sorting needs in Arrays, which is especially tuned to reversing the order of an already sorted collection.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Ben went first, followed by Spencer. Let's see how they did!</p>

<blockquote>2. Spaghetti Sort is capable of sorting its contents at O(n) speeds even in the worst of cases, but requires a quadratic amount of memory in the process.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Spaghetti_sort">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Bogosort uses the power of random shuffling to achieve a computational complexity of O(n) in the best of cases, but is unfortunately not stable in the process.</blockquote>

<p>They both thought this was also factual, and it is also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Bogosort">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. Neuralsort makes use of a convolutional neural network to sort at O(2n) speeds on average, though the worst case can take quadratic time.</blockquote>

<p>Spencer wasn't so sure about this one, which was the right hunch to have since it was the <strong>compiler error</strong>! Neuralsort was completely made up, though right up there with a fictional Blockchain sort, it feels like it's just <em>waiting</em> to be invented.</p>

<p>Which leaves…</p>

<blockquote>4. Named after Tim, Timsort is used in Swift 5 to perform sorting needs in Arrays, which is especially tuned to reversing the order of an already sorted collection.</blockquote>

<p>…which Ben thought for sure was too fishy to be true, but it was a <em>code completion</em> after all! <a href="https://en.wikipedia.org/wiki/Timsort#cite_note-8">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-13</guid><title>Episode 13: Host Spotlight: Dimitri — Happy to Sell Only Two Copies</title><description>We are spotlight our very own host, Dimitri Bouniol, and learn how he got into development!</description><link>https://codecompletion.io/episodes/2020/ep-13</link><pubDate>Tue, 3 Nov 2020 18:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 13! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>How Dimitri got into development.</li><li>Dimitri's current interests and areas to explore.</li><li>Fernando asks: “You can swap one feature from Swift and Obj-C. Which feature from Obj-C goes to Swift and which does Swift give to Obj-C? Explain in iambic pentameter.”</li><li>Spencer asks: “If you could have time to work on an old side-project/hobby project what would it be and why?”</li></ul><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Fernando and his new book: <a href="https://gumroad.com/l/QutHw">From Junior to Senior: Practical iOS Style Guide</a>. Go to <a href="https://twitter.com/fromjrtosr">https://twitter.com/fromjrtosr</a> today to learn more!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-12</guid><title>Episode 12: The First Rule of Dev Club…</title><description>We are joined by special guest James McDougall and discuss how he got into development, and how to get your foot in the door as a Junior Developer!</description><link>https://codecompletion.io/episodes/2020/ep-12</link><pubDate>Mon, 26 Oct 2020 23:40:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 12! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code! This time, we are joined by special guest, Dan Morse! Be sure to follow them on Twitter at <a href="https://twitter.com/JamesWMcDougall">@JamesWMcDougall</a>.</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>James's path from audio engineer to app developer.</li><li>How to get an interview when you don't have experience.</li><li>Fudging your resumes, but not lying to the hiring manager.</li></ul><h2>🚧 #CompleteTheCode</h2><p><em>Last</em> week's <em>#CompleteTheCode</em>:</p><blockquote>What sort of crash could easily occur with the following code?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">class</span> Person: <span class="splashtype">CustomStringConvertible</span> {
    <span class="splashkeyword">var</span> name: <span class="splashtype">String</span> = <span class="splashstring">""</span>
    <span class="splashkeyword">unowned var</span> twin: <span class="splashtype">Person</span>?
    
    <span class="splashkeyword">private init</span>() { }
    
    <span class="splashkeyword">static func</span> makeTwins() -&gt; (<span class="splashtype">Person</span>, <span class="splashtype">Person</span>) {
        <span class="splashkeyword">let</span> (a, b) = (<span class="splashtype">Person</span>(), <span class="splashtype">Person</span>())
        a.<span class="splashproperty">twin</span> = b; b.<span class="splashproperty">twin</span> = a
        
        <span class="splashkeyword">return</span> (a, b)
    }
    
    <span class="splashkeyword">var</span> description: <span class="splashtype">String</span> { <span class="splashstring">"Twin:</span> \(twin?.<span class="splashproperty">name</span> ?? <span class="splashstring">""</span>)<span class="splashstring">"</span> }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>The UTF-32 view provides access to each character as a 4-byte UInt32, representing the complete range of all 4 billion unicode code points, but in their original, possibly decomposed, forms.</li></ol><ol start="2"><li>The UTF-8 view optimizes for memory at a disadvantage to manipulation speed, since each unicode character may be represented by one or more bytes, making length calculations costly, but necessary for many C APIs.</li></ol><ol start="3"><li>Easily accessibly by treating a string like a collection, the default view represents normalized characters as they would be displayed on screen, even if they were originally decomposed.</li></ol><ol start="4"><li>The UTF-16 view is optimal when interacting with unicode libraries such as Objective-C’s NSString since it vends UInt16 code-points, as is standard in many programing models.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>As our special guest, James went first, followed by Fernando. Let's see how they did!</p>

<blockquote>2. The UTF-8 view optimizes for memory at a disadvantage to manipulation speed, since each unicode character may be represented by one or more bytes, making length calculations costly, but necessary for many C APIs.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://developer.apple.com/documentation/swift/string#2905656">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. The UTF-32 view provides access to each character as a 4-byte UInt32, representing the complete range of all 4 billion unicode code points, but in their original, possibly decomposed, forms.</blockquote>

<p>James was tempted by this one, but ultimately chose number 3, and Fernando, a contrarian, ignored this wisdom, which is unfortunate because it was the <strong>compiler error</strong>! Although there is a Unicode Scalar View, there is no native utf32 view that vends plain UInt32s… <a href="https://developer.apple.com/documentation/swift/string#2905651">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Easily accessibly by treating a string like a collection, the default view represents normalized characters as they would be displayed on screen, even if they were originally decomposed.</blockquote>

<p>James ultimately though this one was being sneaky, but it was a <em>code completion</em> afterall! <a href="https://developer.apple.com/documentation/swift/string#2905650">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. The UTF-16 view is optimal when interacting with unicode libraries such as Objective-C’s NSString since it vends UInt16 code-points, as is standard in many programing models..</blockquote>

<p>…which Fernando should have known but picked anyway, as it was also a <em>code completion</em>. <a href="https://developer.apple.com/documentation/swift/string#2905653">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-11</guid><title>Episode 11: Fernando's Going to Eat His Hat</title><description>We discuss last week's Hi, Speed event, including the new HomePod mini, iPhone 12, and 5G!</description><link>https://codecompletion.io/episodes/2020/ep-11</link><pubDate>Mon, 19 Oct 2020 19:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 11! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>If 5G is as useful a feature as Apple made it out to be.<ul><li><a href="https://www.youtube.com/watch?v=_CTUs_2hq6Y">5G: Explained by MKBHD</a>.</li><li>The new HomePod mini.</li><li>The new iPhone 12.</li><li>Which device we'll all be getting.</li></ul></li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What sort of crash could easily occur with the following code?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">class</span> Person: <span class="splashtype">CustomStringConvertible</span> {
    <span class="splashkeyword">var</span> name: <span class="splashtype">String</span> = <span class="splashstring">""</span>
    <span class="splashkeyword">unowned var</span> twin: <span class="splashtype">Person</span>?
    
    <span class="splashkeyword">private init</span>() { }
    
    <span class="splashkeyword">static func</span> makeTwins() -&gt; (<span class="splashtype">Person</span>, <span class="splashtype">Person</span>) {
        <span class="splashkeyword">let</span> (a, b) = (<span class="splashtype">Person</span>(), <span class="splashtype">Person</span>())
        a.<span class="splashproperty">twin</span> = b; b.<span class="splashproperty">twin</span> = a
        
        <span class="splashkeyword">return</span> (a, b)
    }
    
    <span class="splashkeyword">var</span> description: <span class="splashtype">String</span> { <span class="splashstring">"Twin:</span> \(twin?.<span class="splashproperty">name</span> ?? <span class="splashstring">""</span>)<span class="splashstring">"</span> }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Just introduced this month, swift-algorithms is a new package that makes complex sequence and collection algorithm implementations available which wouldn’t otherwise fit in with the standard library.</li></ol><ol start="2"><li>A foundational library to many server-side swift initiatives, swift-nio exposes high level building blocks for interacting with non-blocking IO, such as files, streams, and datagrams.</li></ol><ol start="3"><li>Built on top of swift-nio, swift-metrics is a package primarily intended for web analytics that makes it easy to collect data from your server application in a privacy conscious way.</li></ol><ol start="4"><li>Re-implementing much of the functionality URLSession provides, async-http-client is a high performance HTTP client for Swift actively maintained by the Swift Server Work Group.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando went first, followed by Ben. Let's see how they did!</p>

<blockquote>1. By using extended delimiters for string literals, all special characters including the backslash will be represented as normal characters.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://docs.swift.org/swift-book/ReferenceManual/LexicalStructure.html#ID417">Learn&nbsp;More&nbsp;→</a> <a href="https://developer.apple.com/app-store/kids-apps/">More&nbsp;→</a></p>

<blockquote>4. Re-implementing much of the functionality URLSession provides, async-http-client is a high performance HTTP client for Swift actively maintained by the Swift Server Work Group.</blockquote>

<p>They both thought this was also factual, and it is indeed a <em>code completion</em>! <a href="https://developer.apple.com/documentation/swift/expressiblebynilliteral">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. A foundational library to many server-side swift initiatives, swift-nio exposes high level building blocks for interacting with non-blocking IO, such as files, streams, and datagrams.</blockquote>

<p>Fernando had doubts whether Swift NIO was actually considered a high-level library, and Ben followed his lead, which is unfortunate because it was still a <em>code completion</em>! <a href="https://docs.swift.org/swift-book/ReferenceManual/LexicalStructure.html#ID416">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>3. Built on top of swift-nio, swift-metrics is a package primarily intended for web analytics that makes it easy to collect data from your server application in a privacy conscious way.</blockquote>

<p>…which everyone incorrectly thought was another code completion, but it was the <strong>compiler error</strong>! Not only is swift-metrics not built on Swift NIO, it is also not meant for web analytics, and is instead there to see if your application is performing. <a href="https://developer.apple.com/documentation/swift/expressiblebydictionaryliteral">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-10</guid><title>Episode 10: I Don't Want to be the Negative Nancy…</title><description>We predict what will be announced during this week's Hi, Speed event!</description><link>https://codecompletion.io/episodes/2020/ep-10</link><pubDate>Mon, 12 Oct 2020 21:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 10! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>The “Hi, Speed” event.</li><li>New iPhone predictions.</li><li>The hypothetical HomePod mini.</li><li>Whether we all want AirTags or not.</li></ul><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a>! Search for <a href="https://apps.apple.com/app/apple-store/id622463230?pt=1765080&ct=CodeCompletion&mt=8">Pennant</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-9</guid><title>Episode 9: Just Enough Research</title><description>We discuss A14 performance leaks, Accessibility, and who to ask to test your apps.</description><link>https://codecompletion.io/episodes/2020/ep-9</link><pubDate>Mon, 5 Oct 2020 18:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 9! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>New A14 performance leaks.</li><li>Integrating Accessibility in your apps.</li><li>Testing your apps with real users.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What are the changes you could make to the code below so that we can have a <code>ProcessingCoordinator.Error</code> nested Error type?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">struct</span> ProcessingCoordinator {
    <span class="splashcomment">// ...</span>
}

<span class="splashcomment">// We want this error type to be usable as ProcessingCoordinator.Error
// What changes would you make?</span>
<span class="splashkeyword">enum</span> &lt;# <span class="splashtype">My ProcessingCoordinator Error Type</span> #&gt;: <span class="splashtype">Error</span> {
    <span class="splashkeyword">case</span> notFound
    <span class="splashcomment">// ...</span>
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>By using extended delimiters for string literals, all special characters including the backslash will be represented as normal characters.</li></ol><ol start="2"><li>Not limited to optionals, any type can conform to <code>ExpressibleByNilLiteral</code> to have a special initializer called if <code>nil</code> is used along with that type.</li></ol><ol start="3"><li>Like integer literals, floating point literals can be expressed in binary, octal, decimal, or hexadecimal forms.</li></ol><ol start="4"><li>Although Dictionaries prohibit it, <code>ExpressibleByDictionaryLiteral</code> allows for multiple entries with the same key.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>Eager to continue a winning streak, Ben went first, followed by Spencer. Let's see how they did!</p>

<blockquote>1. By using extended delimiters for string literals, all special characters including the backslash will be represented as normal characters.</blockquote>

<p>Both of our completionists thought this was true, and it is indeed a <em>code completion</em>! <a href="https://docs.swift.org/swift-book/ReferenceManual/LexicalStructure.html#ID417">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Not limited to optionals, any type can conform to <code>ExpressibleByNilLiteral</code> to have a special initializer called if <code>nil</code> is used along with that type.</blockquote>

<p>They both thought this was also factual, and it is indeed a <em>code completion</em>! <a href="https://developer.apple.com/documentation/swift/expressiblebynilliteral">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Like integer literals, floating point literals can be expressed in binary, octal, decimal, or hexadecimal forms.</blockquote>

<p>Although Ben initially had some doubts, both of our completionists thought this was true, which is unfortunate because it was the <strong>compiler error</strong>! Although you can define a hexadecimal or decimal floating point number, you cannot do so for binary and octal numbers. <a href="https://docs.swift.org/swift-book/ReferenceManual/LexicalStructure.html#ID416">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. Although Dictionaries prohibit it, <code>ExpressibleByDictionaryLiteral</code> allows for multiple entries with the same key.</blockquote>

<p>…which everyone incorrectly thought was the error, but it was a <em>code completion</em> after all! <a href="https://developer.apple.com/documentation/swift/expressiblebydictionaryliteral">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1533254320?pt=1765080&ct=CodeCompletion&mt=8">Sticky Widgets</a> on the iOS App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-8</guid><title>Episode 8: Is Two Wins a Streak?</title><description>We discuss how the App Store, app review, and marketing your app has changes over the years.</description><link>https://codecompletion.io/episodes/2020/ep-8</link><pubDate>Mon, 28 Sep 2020 17:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 8! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>What it’s like launching an app in 2020 compared to 2008.</li><li>How the process of app review has changed.</li><li>How developers are more on the hook than ever to provide their own marketing as App Store features don’t weigh as heavily as they did in the past.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>What's the technical limitation that prevents line 3? Why is line 4 allowed?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">struct</span> Folder {
    <span class="splashkeyword">var</span> name: <span class="splashtype">String</span>
    <span class="splashkeyword">var</span> parent: <span class="splashtype">Folder</span>? <span class="splashcomment">// What technical limitation prevents this?</span>
    <span class="splashkeyword">var</span> children: [<span class="splashtype">Folder</span>] <span class="splashcomment">// And why is this ok?</span>
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Early versions of iPhone OS were limited to a black home screen background, but iOS 3.2 added the capability to finally change it.</li></ol><ol start="2"><li>iOS 4 brought emoji support to the iPhone and iPad for the first time via a built-in keyboard.</li></ol><ol start="3"><li>Although available since the very beginning, iPhone OS 2 brought a scientific calculator to the base feature set when the device was in landscape.</li></ol><ol start="4"><li>Notification Center finally made its debut in iOS 5, allowing users to manage notifications.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Ben went first, followed by Spencer. Let's see how they did!</p>

<blockquote>3. Although available since the very beginning, iPhone OS 2 brought a scientific calculator to the base feature set when the device was in landscape.</blockquote>

<p>Everyone thought this was true, and it would be odd if they didn't, since this is a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/IPhone_OS_2">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>4. Notification Center finally made its debut in iOS 5, allowing users to manage notifications.</blockquote>

<p>Everyone was also in agreement here, also making this a <em>code completion</em> after all! <a href="https://en.wikipedia.org/wiki/IOS_5">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>1. Early versions of iPhone OS were limited to a black home screen background, but iOS 3.2 added the capability to finally change it.</blockquote>

<p>Despite having an iPod touch stuck on this version, Spencer wasn't too sure, which was unfortunate since it was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/IOS_version_history#iPhone_OS_3">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>2. iOS 4 brought emoji support to the iPhone and iPad for the first time via a built-in keyboard.</blockquote>

<p>…which Ben once again had severe doubts with, since it was the <strong>compiler error</strong>! Although emoji would become a widely used feature in iOS 5, they could be enabled via sneaky apps in iOS 4, and were actually available in Japan as early as iPhone OS 2.2! <a href="https://emojipedia.org/apple/iphone-os-2.2/">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Fernando and his new book: <a href="https://gumroad.com/l/QutHw">From Junior to Senior: Practical iOS Style Guide</a>. Go to <a href="https://twitter.com/fromjrtosr">https://twitter.com/fromjrtosr</a> today to learn more!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-7</guid><title>Episode 7: Code Completion SE</title><description>We discuss Apple's “Time Flies” September Event, and what it means for developers.</description><link>https://codecompletion.io/episodes/2020/ep-7</link><pubDate>Mon, 21 Sep 2020 16:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 7! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>iOS 14's rushed release.</li><li><a href="https://www.whatsnewinswift.com/?from=5.2&to=5.3">New Features in Swift 5.3</a>.</li><li>The A14 making it's debut on iPad before iPhone.</li><li>The return of Touch ID on the iPad's top button.</li><li>The new Apple One subscription service.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>The code below will output <code>Hello, Ben!</code>. How would you change line 3 so it outputs <code>Hello, Dimitri!</code> instead?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">var</span> name = <span class="splashstring">"Dimitri"</span>

<span class="splashkeyword">var</span> introduce = {
    <span class="splashcomment">// What change can you make to the above line
    // to output "Dimitri" rather than "Ben"?</span>
    <span class="splashcall">print</span>(<span class="splashstring">"Hello,</span> \(name)<span class="splashstring">!"</span>)
}

name = <span class="splashstring">"Ben"</span>

<span class="splashcall">introduce</span>()
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Introduced in 1987, the Macintosh SE was a Special Edition of the 128k Mac that was the first Mac to offer a color display as an option, although limited to 8 bits.</li></ol><ol start="2"><li>Introduced 2 years later as a processor update of its predecessor, the Macintosh SE/30 was unofficially expandable to a whopping 128 MB of RAM, an amount that was greater than many future models, and its board and front panel were available as official upgrades for the original Macintosh SE.</li></ol><ol start="3"><li>A surprise to many, the SE naming made a comeback in 2016 as the iPhone SE, a Special Edition of iPhone 6S that used the iPhone 5S case, and would mark a new tier of low-cost iPhones with up-to-date components.</li></ol><ol start="4"><li>Available today, the Apple Watch SE follows in the footsteps of the iPhone SE, but rather than use the internals of the flagship Series 6, it is instead closer to a limited variant of the Series 5, with an S5 package on a chip, but without an always-on display and electrocardiogram sensor.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Johnny went first, followed by Fernando and Ben. Let's see how they did!</p>

<blockquote>4. Available today, the Apple Watch SE follows in the footsteps of the iPhone SE, but rather than use the internals of the flagship Series 6, it is instead closer to a limited variant of the Series 5, with an S5 package on a chip, but without an always-on display and electrocardiogram sensor.</blockquote>

<p>Everyone thought this was true, and given the timing, it would be surprising if they didn't, making this one a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Apple_Watch_SE">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. A surprise to many, the SE naming made a comeback in 2016 as the iPhone SE, a Special Edition of iPhone 6S that used the iPhone 5S case, and would mark a new tier of low-cost iPhones with up-to-date components.</blockquote>

<p>Fernando wasn't so sure about this one and detected some code smell, but it was also a <em>code completion</em> after all! <a href="https://en.wikipedia.org/wiki/IPhone_SE_(1st_generation)">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Introduced 2 years later as a processor update of its predecessor, the Macintosh SE/30 was unofficially expandable to a whopping 128 MB of RAM, an amount that was greater than many future models, and its board and front panel were available as official upgrades for the original Macintosh SE.</blockquote>

<p>Johnny wasn't too sure about the first two, but picked this one instead, which was unfortunate since it was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Macintosh_SE/30">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>1. Introduced in 1987, the Macintosh SE was a Special Edition of the 128k Mac that was the first Mac to offer a color display as an option, although limited to 8 bits.</blockquote>

<p>…which Ben could not believe, since it was the <strong>compiler error</strong>! Although color displays were available for some earlier Apple computers, they would not make it to the Macintosh line for a few more years due to memory and processing requirements. Not only that, “SE” did not stand for “Special Edition”, but “System Expansion”! <a href="https://en.wikipedia.org/wiki/Macintosh_SE">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a>! Search for <a href="https://apps.apple.com/app/apple-store/id1525104124?mt=12">Super Easy Timer</a> on the Mac App Store today to give it a try!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-6</guid><title>Episode 6: I Hate This Game</title><description>With special guests Josh Holtz and Tyler Hillsman, we discuss different App Store pricing models, and which would be the best fit for Josh's new app.</description><link>https://codecompletion.io/episodes/2020/ep-6</link><pubDate>Mon, 14 Sep 2020 16:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 6! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show! This time, we are joined by special guests, Josh Holtz and Tyler Hillsman! Be sure to follow them on Twitter at <a href="https://twitter.com/joshdholtz">@joshdholtz</a> and <a href="https://twitter.com/thillsman">@thillsman</a>.</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Different App Store Pricing models.</li><li>The benefits of paid up front with the ever-elusive charts.</li><li>Subscription vs In App Purchase for unlocking functionality in an app.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Review the following code — what might the developer have overlooked?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">class</span> View {
    <span class="splashkeyword">private(set) var</span> parent: <span class="splashtype">View</span>?
    <span class="splashkeyword">private(set) var</span> children: [<span class="splashtype">View</span>] = []
    
    <span class="splashkeyword">func</span> removeFromParentView() {
        <span class="splashkeyword">guard let</span> parent = parent <span class="splashkeyword">else</span> { <span class="splashkeyword">return</span> }
        parent.<span class="splashproperty">children</span>.<span class="splashcall">removeAll</span> { $0 === <span class="splashkeyword">self</span> }
    }
    
    <span class="splashkeyword">func</span> add(<span class="splashkeyword">_</span> child: <span class="splashtype">View</span>) {
        <span class="splashkeyword">guard</span> child != <span class="splashkeyword">self else</span> { <span class="splashcall">preconditionFailure</span>() }
        child.<span class="splashcall">removeFromParentView</span>()
        children.<span class="splashcall">append</span>(child)
        child.<span class="splashproperty">parent</span> = <span class="splashkeyword">self</span>
    }
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Streaming game services may offer a catalog app on the App Store to help users sign up for the service and find the games on the App Store, provided that the app adheres to all guidelines, including offering users the option to pay for a subscription with in-app purchase and use Sign in with Apple.</li></ol><ol start="2"><li>Apps in the Kids category must not include links out of the app, purchasing opportunities, or other distractions to kids unless guarded behind a parental gate.</li></ol><ol start="3"><li>Screenshots should not include text and image overlays other than to illustrate the app in use, and they must not use any Apple devices or products for marketing purposes.</li></ol><ol start="4"><li>If your app displays Activity rings, they should not visualize Move, Exercise, or Stand data in a way that resembles the Activity control.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Josh and Tyler went first, followed by Fernando and Ben. Let's see how they did!</p>

<blockquote>3. Screenshots should not include text and image overlays other than to illustrate the app in use, and they must not use any Apple devices or products for marketing purposes.</blockquote>

<p>Everyone thought this was true, and it really should be true! Unfortunately for them though, this one was the <strong>compiler error</strong>! The actual text reads:</p>

<p><strong>2.3.3</strong> Screenshots should show the app in use, and not merely the title art, log-in page, or splash screen. They may also include text and image overlays (e.g. to demonstrate input mechanisms, such as an animated touch point or Apple Pencil) and show extended functionality on device, such as Touch Bar. <a href="https://developer.apple.com/app-store/review/guidelines/#2.3.3">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>4. If your app displays Activity rings, they should not visualize Move, Exercise, or Stand data in a way that resembles the Activity control.</blockquote>

<p>Tyler and Ben had sincere doubts about this one and thought it was the compiler error, but it was a <em>code completion</em> after all! <a href="https://developer.apple.com/app-store/review/guidelines/#5.2.5">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Apps in the Kids category must not include links out of the app, purchasing opportunities, or other distractions to kids unless guarded behind a parental gate.</blockquote>

<p>Although Josh was leaning on number 3 originally, this one was chosen instead, but it was also a <em>code completion</em>! <a href="https://developer.apple.com/app-store/review/guidelines/#1.3">Learn&nbsp;More&nbsp;→</a> <a href="https://developer.apple.com/app-store/kids-apps/">More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>1. Streaming game services may offer a catalog app on the App Store to help users sign up for the service and find the games on the App Store, provided that the app adheres to all guidelines, including offering users the option to pay for a subscription with in-app purchase and use Sign in with Apple.</blockquote>

<p>…which Fernando highly doubted, but it was also a <em>code completion</em>, and one introduced the morning of the day we all recorded on! <a href="https://developer.apple.com/app-store/review/guidelines/#4.9.2">Learn&nbsp;More&nbsp;→</a> <a href="https://developer.apple.com/news/?id=xqk627qu">More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by Fernando and his new book: <a href="https://gumroad.com/l/QutHw">From Junior to Senior: Practical iOS Style Guide</a>. Go to <a href="https://twitter.com/fromjrtosr">https://twitter.com/fromjrtosr</a> today to learn more!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-5</guid><title>Episode 5: Emacs Should Die a Fiery Death</title><description>We discuss when to rewrite your code or tackle technical dept, introduce the world to documentation driven development, and discuss why the lack of good documentation may be hurting juniors trying to get established.</description><link>https://codecompletion.io/episodes/2020/ep-5</link><pubDate>Tue, 8 Sep 2020 16:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 5! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>When to rewrite a project from scratch, when to buckle down and conquer technical debt, and when to do a little something in between.</li><li>The importance of documenting code, and how the lack of documentation stifles newcomers from becoming established developers.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Review the following code — what might the developer have overlooked?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">class</span> DateCell: <span class="splashtype">UITableViewCell</span> {
    
    <span class="splashkeyword">private static let</span> dateFormatter: <span class="splashtype">DateFormatter</span> = {
        <span class="splashkeyword">let</span> dateFormatter = <span class="splashtype">DateFormatter</span>()
        dateFormatter.<span class="splashproperty">dateFormat</span> = <span class="splashstring">"YYYY-MM-dd"</span>
        <span class="splashkeyword">return</span> dateFormatter
    }()
    
    <span class="splashkeyword">var</span> date: <span class="splashtype">Date</span>? {
        <span class="splashkeyword">didSet</span> {
            <span class="splashkeyword">switch</span> date {
            <span class="splashkeyword">case</span> .<span class="splashdotAccess">some</span>(<span class="splashkeyword">let</span> date):
                textLabel?.<span class="splashproperty">text</span> = <span class="splashtype">Self</span>.<span class="splashproperty">dateFormatter</span>.<span class="splashcall">string</span>(from: date)
            <span class="splashkeyword">case</span> .<span class="splashdotAccess">none</span>:
                textLabel?.<span class="splashproperty">text</span> = <span class="splashstring">"N/A"</span>
            }
        }
    }
    
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Although the same can be done using modifier and arrow keys, the text cursor can be quickly moved to the beginning and to the end of a document by using <code>⌃A</code> to go to the beginning, and <code>⌃Z</code> to go to the end.</li></ol><ol start="2"><li>You may know of the <code>⌘⌫</code> command to delete the entire line to the left of the text cursor, but <code>⌃K</code> can be used to delete the line to the right of the text cursor.</li></ol><ol start="3"><li>Available as an alternate clipboard, <code>⌃K</code> and <code>⌃Y</code> represent the kill and yank operations that let you cut and copy text without overriding your main clipboard. The clipboard they use is called the kill ring.</li></ol><ol start="4"><li><code>⌃T</code> is a useful command for transposing two letters that were typed out of order, by flipping the characters on each side of the text cursor.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>This time, Fernando went first, followed by Spencer and Ben. Let's see how they did!</p>

<blockquote>4. <code>⌃T</code> is a useful command for transposing two letters that were typed out of order, by flipping the characters on each side of the text cursor.</blockquote>

<p>Everyone thought this was true, and it is indeed a <em>code completion</em>! <a href="https://jblevins.org/log/kbd">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Available as an alternate clipboard, <code>⌃K</code> and <code>⌃Y</code> represent the kill and yank operations that let you cut and copy text without overriding your main clipboard. The clipboard they use is called the kill ring.</blockquote>

<p>Fernando was doubtful and thought this one was the compiler error, but it was a <em>code completion</em> after all! <a href="https://jblevins.org/log/kbd#fn-kbd-2">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. You may know of the <code>⌘⌫</code> command to delete the entire line to the left of the text cursor, but <code>⌃K</code> can be used to delete the line to the right of the text cursor.</blockquote>

<p>This time Ben was hesitant, but this one was also a <em>code completion</em>! <a href="https://support.apple.com/en-us/HT201236">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>1.  Although the same can be done using modifier and arrow keys, the text cursor can be quickly moved to the beginning and to the end of a document by using <code>⌃A</code> to go to the beginning, and <code>⌃Z</code> to go to the end.</blockquote>

<p>…which Spencer doubted for all the right reasons, because it was indeed the <strong>compiler error</strong>! <code>⌃A</code> will go to the beginning, but the geginning or a line, not the document, and <code>⌃Z</code> was completemy made up. <code>⌘↑</code> and <code>⌘↓</code> can be used on the mac to go to the top and bottom of the document… <a href="http://wttools.sourceforge.net/emacs-stuff/emacs-keybindings.html">Learn More&nbsp;→</a></p>

<p>It turns out hat most of these bindings are <a href="https://webcache.googleusercontent.com/search?q=cache:JnfVRYsDTsMJ:https://www.hcs.harvard.edu/~jrus/site/system-bindings.html+&cd=1&hl=en&ct=clnk&gl=us&client=safari">fully customizable</a>! Check out the <a href="https://webcache.googleusercontent.com/search?q=cache:JnfVRYsDTsMJ:https://www.hcs.harvard.edu/~jrus/site/system-bindings.html+&cd=1&hl=en&ct=clnk&gl=us&client=safari">list</a> of action methods you can call to extend functionality even further.</p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Not Phở</a>. <a href="https://apps.apple.com/app/apple-store/id1525104124?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for “Not Pho” on the iOS and macOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/articles/2020/09/universal-interfaces</guid><title>Implementing Universal Interfaces</title><description>We discuss different ways of bringing an iPhone UI to the iPad, and building interfaces for universal apps.</description><link>https://codecompletion.io/articles/2020/09/universal-interfaces</link><pubDate>Wed, 2 Sep 2020 16:00:00 +0000</pubDate><content:encoded><![CDATA[<p>With the addition of Catalyst last year in macOS Catalina, it can be tempting to want to click a checkbox to make an iPhone app available for the Mac, but it is first necessary to add support for various iPad layouts if you hope your app will behave nicely in a windowed environment. This can be a more difficult process to get right than many assume, as not every iPhone layout can expand to fill a much larger space without compromising the original design choices made for the smaller screen.</p><h2>📏 Using Trait Variations and Storyboards</h2><p>The method Apple recommends is to use trait variations within a storyboard to <em>vary</em> the user interface with a different set of layout rules, or <em>constraints</em>, depending on the size of the device being used. This system will adapt the position, size, and availability of various interface elements on the app's behalf, taking care of a variety of situations, from the smallest to the largest iPhones, to multitasking on the iPad.</p><p>For instance, for a given element such as a button on screen, it can be given the full width available on a device with a <em>compact size class</em> such as an iPhone, but would be given a smaller width and moved to the side on a device with a <em>regular size class</em>, such as an iPad. This allows a variety of constraints to be set of ahead of time for a variety of devices.</p><p>Unfortunately, using trait variations in a storyboard requires that interfaces at any size be fairly similar, which can lead to one extreme being non-ideal, or worse, to a compromised interface for all screen sizes. This leads to implementations that can become quite messy and difficult to maintain.</p><h2>🗂 Using Multiple Storyboards</h2><p>One solution that enables multiple interface layouts relatively easily is to use multiple storyboards, and choose a storyboard at launch depending on the user interface idiom, which lets the app know if it is running as an iPhone app, iPad app, or with Catalyst, a macOS app.</p><p>This is, however, not a new technique. Before storyboards became available in iOS 5, the recommendation was to have a separate interface, or <em>NIB</em>, per device type, and to switch to the corresponding interface on launch. The system would even make this automatic if you suffixed your iPad specific interface file with <code>~ipad.nib</code>, which would automatically be preferred when running on an iPad.</p><p>Unfortunately, this technique does not lend itself well to multitasking on the iPad. As an app is resized to the thinner presentations on either side of the iPad’s screen, it starts to resemble a vertically-stretched out iPhone, and can benefit from layout decisions that work better on an iPhone rather than an iPad. Unfortunately, to best take advantage of this change in layout when using multiple storyboards would be to re-build the entire interface from scratch, which is not ideal.</p><h2>📜 A Historical Note About NIBs</h2><p>A NIB, or <em>NeXT Interface Builder</em> document, is a format that encodes the position, size, attributes, and connections of various interface elements relative to one another, so that they can be loaded at runtime and connected to objects that the app is currently controlling. The format has undergone several changes since it was originally invented in the late 80s, but is ultimately still used in Storyboards to this day.</p><p>In a typical Model-View-Controller organization of an app, the NIB represents the portion that is displayed on screen, known as the <em>view</em>. In order to achieve re-usable code that could work for multiple user interfaces — for instance pertaining to different variations of an app, or even the same interface, but in different languages with different layout considerations — multiple NIBs would be created by the developer, but they would all be connected to the same managing object within the app, known as the <em>controller</em>.</p><p>Modern View Controllers on both iOS and macOS maintain this tradition, as their preferred way of being created, know as a <em>designated initializer</em>, reflects their preference for a localized NIB to connect to: <code>init(nibName:bundle:)</code>.</p><h2>🧮 Programmatic Layout</h2><p>Another approach that could work well is to lay all the views out programmatically. This approach tends to work best when the number of constraints within a storyboard climbs to an amount where making any changes or tweaks becomes burdensome, but comes with the downside that the developer no longer has a visual canvas to use when editing their interface.</p><p>In fact, sometimes this is a necessary approach, especially if your interface could benefit from additional flexibility that size classes do not account for. For instance, an iPad in both landscape and portrait is considered to be a <em>regular size class</em> device, no matter the orientation, but if you wanted to take advantage of the extra width when in landscape, you would be unable to do so using only a storyboard.</p><p>This solution is not too different from the declarative nature of SwiftUI. Essentially, in <code>viewWillLayout()</code> you are given the opportunity to position all views according to the current state of the view controller. You can go further and evaluate exactly how many pixels are available for your controls, and position things accordingly.</p><h2>🏗 Assembling Different Techniques</h2><p>Unfortunately, solutions that are entirely programmatic tend to be a nightmare when working with others, because without the visual reinforcement of where things are, along with the usual lack of well documented code, teammates may be intimidated to jump in and offer changes. A hybrid approach is encouraged, where individual groups of views could be laid out programmatically, but those groups are available as views configurable in a storyboard directly. Ultimately, such solutions rely on not only the app being well designed, but the code itself being architected and thoughtful as well.</p><p>Using <a href="https://codecompletion.io/articles/2020/08/compositional-layouts">compositional data sources</a> offer an alternative solution, especially when the main UI is a collection of entries that should take advantage of as much space as they can use. This can even be a solution that is more cleanly represented as code, since a storyboard would only serve to obscure the properties being set on a single view behind different panels, while the code itself is not actually doing any layout work itself: the collection view is.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-4</guid><title>Episode 4: Clocking in at 392 charact…</title><description>We discuss interviewing in 2020, getting acclimated to a new team while remote, and the real truth behind Test Driven Development, all with our special guest Dan Morse!</description><link>https://codecompletion.io/episodes/2020/ep-4</link><pubDate>Mon, 31 Aug 2020 15:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 4! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show! This time, we are joined by special guest, Dan Morse! Be sure to follow them on Twitter at <a href="https://twitter.com/danandami">@danandami</a>.</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>What interviews are like in 2020 when everything is remote.</li><li>How to get acclimated to a new team as a junior developer.</li><li>The pros and cons of Test Driven Development.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Invert and reduce the following if statement without introducing any new variables or statements:</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">let</span> boolA, boolB, boolC: <span class="splashtype">Bool</span>
<span class="splashkeyword">let</span> intA, intB, intC: <span class="splashtype">Int</span>

<span class="splashcomment">// TODO: Invert this statement so we don't need an else block:</span>
<span class="splashkeyword">if</span> boolA &amp;&amp; !boolB || (boolC &amp;&amp; intA == intB || intC &gt; intA) {
    <span class="splashcomment">// Do Nothing</span>
} <span class="splashkeyword">else</span> {
    <span class="splashcall">print</span>(<span class="splashstring">"The condition above was not met. Do the thing!"</span>)
}

<span class="splashcomment">// !(boolA &amp;&amp; !boolB || (boolC &amp;&amp; intA == intB || intC &gt; intA))
// ... is not a solution!</span>
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Clocking in at 392 characters, <code>encode­Reprojection­To­Command­Buffer:­source­Texture:­previous­Texture:­destination­Texture:­previous­Luminance­Moments­Texture:­destination­Luminance­Moments­Texture:­source­Texture2:­previous­Texture2:­destination­Texture2:­previous­Luminance­Moments­Texture2:­destination­Luminance­Moments­Texture2:­previous­Frame­Count­Texture:­destination­Frame­Count­Texture:­motion­Vector­Texture:­depth­Normal­Texture:­previous­Depth­Normal­Texture:­</code> is the longest public method name as of iOS 13, and surely does something, but it’s documentation is still marked as No Overview Available.</li></ol><ol start="2"><li>The smallest on this list, <code>convolve­With­Destination:temp­Buffer:­source­Offset­To­Region­Of­InterestX:­source­Offset­To­Region­Of­InterestY:­kernel:­kernel­Height:­kernel­Width:­divisor:­background­Color:­options:­</code> is one of many related Objective-C methods in the Accelerate framework for manipulating images.</li></ol><ol start="3"><li>A private Method on UIViewController, <code>attention­Class­Dump­User:­yes­Its­Us­Again:­although­Swizzling­And­Overriding­Private­Methods­Is­Fun:­it­Wasnt­Much­Fun­When­Your­App­Stopped­Working:­please­Refrain­From­Doing­So­In­The­Future­Okay­Thanks­Bye:</code> is actually a no-op, though is used by some third party libraries.</li></ol><ol start="4"><li>Related to CarPlay, <code>init­With­Enable­Fan:­enable­Air­Conditioner:­enable­Climate­Control:­enable­Auto­Mode:­air­Circulation­Mode:­fan­Speed­Index:­fan­Speed­Percentage:­relative­Fan­Speed­Setting:­temperature:­relative­Temperature­Setting:­climate­Zone:</code> is a public method with full online documentation, though now deprecated.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>Our special guest went first, followed by Ben. Let's see how they did!</p>

<blockquote>1. Clocking in at 392 characters, <code>encode­Reprojection­To­Command­Buffer:­source­Texture:­previous­Texture:­destination­Texture:­previous­Luminance­Moments­Texture:­destination­Luminance­Moments­Texture:­source­Texture2:­previous­Texture2:­destination­Texture2:­previous­Luminance­Moments­Texture2:­destination­Luminance­Moments­Texture2:­previous­Frame­Count­Texture:­destination­Frame­Count­Texture:­motion­Vector­Texture:­depth­Normal­Texture:­previous­Depth­Normal­Texture:­</code> is the longest public method name as of iOS 13, and surely does something, but it’s documentation is still marked as No Overview Available.</blockquote>

<p>Everyone thought this was true, and it is indeed a <em>code completion</em>! It actually beats out second place by over 100 characters… <a href="https://developer.apple.com/documentation/metalperformanceshaders/mpssvgf/3143562-encodereprojectiontocommandbuffe?language=objc">Learn&nbsp;More&nbsp;→</a> <a href="longest-method-names">More&nbsp;→</a></p>

<blockquote>2. The smallest on this list, <code>convolve­With­Destination:temp­Buffer:­source­Offset­To­Region­Of­InterestX:­source­Offset­To­Region­Of­InterestY:­kernel:­kernel­Height:­kernel­Width:­divisor:­background­Color:­options:­</code> is one of many related Objective-C methods in the Accelerate framework for manipulating images.</blockquote>

<p>Everyone also thought this was true, but it was the <strong>compiler error</strong>, largely due to the fact that Accelerate is largely a C framework, meaning no such <em>Objective-C</em> method exists (though there is a <code>vImage_­Error vImage­Convolve_­ARGB­8888(...);</code>)! <a href="https://developer.apple.com/documentation/accelerate/1515923-vimageconvolve_argb8888?language=objc">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. A private Method on UIViewController, <code>attention­Class­Dump­User:­yes­Its­Us­Again:­although­Swizzling­And­Overriding­Private­Methods­Is­Fun:­it­Wasnt­Much­Fun­When­Your­App­Stopped­Working:­please­Refrain­From­Doing­So­In­The­Future­Okay­Thanks­Bye:</code> is actually a no-op, though is used by some third party libraries.</blockquote>

<p>Dan thought this was completely made up, but it was a <em>code completion</em> after all! <a href="https://github.com/marcoarment/BugshotKit/blob/bfa7fc24760ea9315702252b05a685108787dc4e/BugshotKit/BugshotKit.m#L219">Learn&nbsp;More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. Related to CarPlay, <code>init­With­Enable­Fan:­enable­Air­Conditioner:­enable­Climate­Control:­enable­Auto­Mode:­air­Circulation­Mode:­fan­Speed­Index:­fan­Speed­Percentage:­relative­Fan­Speed­Setting:­temperature:­relative­Temperature­Setting:­climate­Zone:</code> is a public method with full online documentation, though now deprecated.</blockquote>

<p>…which Ben doubted could actually be in iOS with this level of control, but it was indeed a <em>code completion</em>… <a href="https://developer.apple.com/documentation/sirikit/insetclimatesettingsincarintent/2102611-initwithenablefan?language=objc">Learn More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://www.jonnybcodes.com">JohnnyB</a>'s Bon Voyage eCommerce App course. Visit <a href="http://bon-voyage.app/course">bon-voyage.app/course</a> and be sure to follow Bon Voyage's instructor <a href="https://twitter.com/jonnybcodes">@jonnybcodes</a> on Twitter to learn more and stay up to date with all his courses!</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-3</guid><title>Episode 3: What's Clascal?</title><description>We discuss transitioning between Xcode toolchain versions, web development in Swift, and how to escapse tutorial hell.</description><link>https://codecompletion.io/episodes/2020/ep-3</link><pubDate>Wed, 26 Aug 2020 22:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 3! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Transitioning between Xcode toolchains when you want to use new SDK features, but still be able to compile from an older version of Xcode.</li><li>Doing web development using Swift, by making use of John Sundell's Publish and Vapor.</li><li>How to get out of tutorial hell, and what next steps a fledgling developer could take.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Review the following code — why might some developers discourage the pattern shown below?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">override func</span> tableView(<span class="splashkeyword">_</span> tableView: <span class="splashtype">UITableView</span>,
                        cellForRowAt indexPath: <span class="splashtype">IndexPath</span>) -&gt; <span class="splashtype">UITableViewCell</span> {
    <span class="splashkeyword">guard let</span> cell = tableView.<span class="splashcall">dequeueReusableCell</span>(withIdentifier: <span class="splashstring">"DateCell"</span>,
                                                   for: indexPath) <span class="splashkeyword">as</span>? <span class="splashtype">DateCell</span>
          <span class="splashkeyword">else</span> { <span class="splashkeyword">return</span> <span class="splashtype">DateCell</span>() }
    
    cell.<span class="splashproperty">date</span> = dates[indexPath.<span class="splashproperty">row</span>]
    <span class="splashkeyword">return</span> cell
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Swift started its development as far back as 2010 as an evolution of the work Apple was already doing improving the Objective-C language with features like Automatic reference counting, zeroing weak references, and blocks.</li></ol><ol start="2"><li>Available since the very first release of Mac OS X, Java bindings to Cocoa called the Java Bridge were available to help bring new developers to the fledgling operating system, though Mac OS X 10.4 was the first release to introduce many new APIs not included in the Java bindings.</li></ol><ol start="3"><li>Now at version 4.0, Objective-C was originally invented in 1984 by Brad Cox, and production versions did not even have a concept of manual reference counting as a part of the main runtime or in FoundationKit even in NeXTStep 3.0.</li></ol><ol start="4"><li>Clascal was a language Apple developed for the Lisa Workshop development system as a version of Pascal with object oriented features, and was supported in all versions of Classic Mac OS as a way to make apps using the MacApp framework, also written in Clascal.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>Spencer went first, followed by Johnny and Fernando. Let's see how they did!</p>

<blockquote>1. Swift started its development as far back as 2010 as an evolution of the work Apple was already doing improving the Objective-C language with features like Automatic reference counting, zeroing weak references, and blocks.</blockquote>

<p>Everyone thought this was true, and it is indeed a <em>code completion</em>! <a href="https://twitter.com/clattner_llvm/status/1284156940747042817">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Available since the very first release of Mac OS X, Java bindings to Cocoa called the Java Bridge were available to help bring new developers to the fledgling operating system, though Mac OS X 10.4 was the first release to introduce many new APIs not included in the Java bindings.</blockquote>

<p>Everyone thought this was true, and it is indeed a <em>code completion</em>! <a href="http://mirror.informatimago.com/next/developer.apple.com/releasenotes/Cocoa/AppKitOlderNotes.html#PBNotes">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Now at version 4.0, Objective-C was originally invented in 1984 by Brad Cox, and production versions did not even have a concept of manual reference counting as a part of the main runtime or in FoundationKit even in NeXTStep 3.0.</blockquote>

<p>Almost everyone thought this was true, but Fernando had their doubts that Objective-C ever reached past version 2.0, which is absolutely did, making this a <em>code completion</em> as well! <a href="https://en.wikipedia.org/wiki/Objective-C">Learn&nbsp;More&nbsp;→</a> <a href="https://simson.net/ref/1993/NeXTSTEP3.0.pdf">More&nbsp;→</a> <a href="https://stackoverflow.com/a/15925553/1565236">More&nbsp;→</a> <a href="https://opensource.apple.com/tarballs/objc4/">More&nbsp;→</a></p>

<p>Which leaves…</p>

<blockquote>4. Clascal was a language Apple developed for the Lisa Workshop development system as a version of Pascal with object oriented features, and was supported in all versions of Classic Mac OS as a way to make apps using the MacApp framework, also written in Clascal.</blockquote>

<p>…which both Spencer and Johnny correctly guessed was the <strong>compiler error</strong>, but only because they never heard of Clascal, which was in fact a real language Apple once used! Unfortunately, Clascal did not survive the entire Classic Mac OS era, which made it the false statement after all… <a href="https://en.wikipedia.org/wiki/Object_Pascal">Learn More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/articles/2020/08/compositional-layouts</guid><title>Compositional Layouts and Diffable Data Sources</title><description>We discuss the new compositional layouts and diffable data sources instroduced in iOS 13, along with things to keep in mind when new APIs come along to seemingly replace older ones.</description><link>https://codecompletion.io/articles/2020/08/compositional-layouts</link><pubDate>Sun, 23 Aug 2020 18:00:00 +0000</pubDate><content:encoded><![CDATA[<p>Compositional layouts and diffable data sources are a set of new APIs that were made available in iOS 13 (and augmented in iOS 14) that allow for better usability when presenting data in a Collection View or Table View. Although they can be quite the learning curve when coming from existing ways of managing <a href="https://developer.apple.com/documentation/uikit/uicollectionview"><code>UICollectionView</code></a>s and <a href="https://developer.apple.com/documentation/uikit/uitableview"><code>UITableView</code></a>s up until now (mostly since the new APIs require a change of mentality to truly be productive with them), they do enable simpler and more expressive code when fully embraced. That said, they do not replace any of the older techniques that are still available, but rather enhance them in ways that enable modern layouts without the same amount of custom work that would have been needed previously.</p><h2>🗄 What is a Data Source?</h2><p>In the traditional setup for either a collection view or a table view, you have the interface element or <em>view</em> itself that presents all the entries (known as <em>cells</em>) that you see on screen, along with the data that backs up those cells. The way it used to work, you would have needed a collection of elements or <em>model objects</em> — for instance a bunch of people in a contacts app, or menu items in a restaurant’s ordering app — that you ultimately wanted to present on screen. This was done via a special object known as a <em>data source</em>, that was contacted by the collection or table view anytime it was ready to display more cells as the user interacted with it.</p><p>Achieved by conforming the data source to the <a href="https://developer.apple.com/documentation/uikit/uicollectionviewdatasource"><code>UICollectionViewDataSource</code></a> or <a href="https://developer.apple.com/documentation/uikit/uitableviewdatasource"><code>UITableViewDataSource</code></a> protocols (you might even make use of the <em>delegate</em> protocols <a href="https://developer.apple.com/documentation/uikit/uicollectionviewdelegate"><code>UICollectionViewDelegate</code></a> and <a href="https://developer.apple.com/documentation/uikit/uitableviewdelegate"><code>UITableViewDelegate</code></a> as well), this indicated that the object could "speak" the same language, or <em>protocol</em>, that the collection or table view expected. Ultimately, the collection or table view could then ask its data source to indicate how many cells there are, along with which entry should be displayed for which cell, but could also ask its delegate to perform an action when that cell was interacted with by the user. This paradigm has been available since <code>UITableView</code> and <code>UICollectionView</code> were originally introduced, and even long before iOS was even available: on the Mac.</p><p>This paradigm works well for highly regular content, but as soon as you have a lot of dynamic reorganization or a custom layout, you’ll start running into problems. You may have even seen such errors: “before the insertion or deletion, there were this many cells, and after the event, there were those many cells”; meanwhile the actual number that should have existed was some other third value. This is a collection or table view’s way of telling the developer something went wrong with how they managed the insertion or deletion of those cells, usually followed by a crash.</p><p>When such a thing happens in Xcode, you get a big error so you can find and fix it, but if you are a user out in the wild, the app will just close instantly, without warning. Ultimately, the solution is probably related to the order cells were added or removed, or maybe a step was forgotten; that said, the model layer and the view layer need to be in sync, and if they are not, this entire crop of issues tends to show up.</p><h2>🔀 Diffable Data Sources</h2><p>One of the ways Apple has tried to solve this issue for developers is to take some of that work and make it the responsibility of the model to manage, using a new type of data source called a <a href="https://developer.apple.com/documentation/uikit/uitableviewdiffabledatasource">diffable data source</a>. One of the necessary steps is to make entries both <a href="https://developer.apple.com/documentation/swift/identifiable"><code>Identifiable</code></a> and <a href="https://developer.apple.com/documentation/swift/hashable"><code>Hashable</code></a>, which allows each model object to indicate if it is related to any other previous instance of the same entry (<em>Identifiable</em>), and if they are, to go one step further and see if they changed since the last time they were displayed (<em>Hashable</em>). The collection or table view can then do a much better job of knowing which model goes with which cell, and if you insert or delete them, or move and reorder them, the view can be smarter about making those changes, without the app's data source needing to do as much manual bookkeeping.</p><p>Before diffable data sources, to move a cell on screen the controller (an object coordinating the views and the model, and often was the data source itself) would have had to delete the cell from where it was, and would then create a brand new cell in a new position (using what's called an <em>index path</em>), telling the view about the change. However, if the controller didn't indicate those changes in exactly the right order, problems would crop up. Using diffable data sources allows the developer to express their interests a bit more fluidly, essentially by setting the data source to exist in a particular state, and asking it to figure out where it is now and what it will become by differentiating, or <em>diffing</em>, between the two before and after, animating those changes automatically. This is where the “diffable” comes from in “diffable data sources”.</p><h2>📰 Compositional Layouts</h2><p>A companion technology to diffable data sources, <a href="https://developer.apple.com/documentation/uikit/uicollectionviewcompositionallayout">compositional layouts</a> allow you to create complex visual interactions between cells. For instance, in the App Store app you might sometimes notice large cards, but other times there will be a smaller table view within one of those cards, or even a section that scrolls vertically. Traditionally, this sort of layout would be very difficult to implement — a developer might even end up embedding a <code>UITableView</code> inside a <code>UICollectionView</code>'s cell, causing the entire layout to be very difficult to manage.</p><p>With compositional layouts, an iOS developer can design their layout in a way that is not too different than styling <code>&lt;div&gt;</code> and <code>&lt;p&gt;</code> tags in CSS, where a group of cells could be set to scroll horizontally, while others would scroll vertically (this is called <em>orthogonal scrolling</em>) — the cells could even be configured to take up different amounts of space on screen! This allows the developer to create lots of very rich and interesting combinations of layouts that would have otherwise been tedious to implement.</p><h2>🤝 Benefits All Around</h2><p>When using a diffable data source, the first thing you may notice is that animations between cells are now nearly automatic, because each model instance is individually hashed and indexed by the framework. This is because snapshots between the old data set and the new data set can be determined really efficiently without storing the entire model multiple times. Whenever you are ready, you can apply a new snapshot on the data source, and indicate if you want it animated or not, and like magic, everything will move to where it needs to move — meaning if a snapshot moves a cell from one section to another, the table view will detect that and animate that movement; the same goes for deletions or insertions.</p><p>Without a diffable data source, a simple method of using collection and table views <em>was</em> available — specifically the catch all method of <code>reloadData()</code>, which would tell the view that it should update itself and ask the data source for the most up to date representation of the entries. However, this was without any transitions or smooth animations. Not to mention, it would reload everything, even the parts that didn’t change, which could be inefficient.</p><p>Compositional layouts on the other hand, make layouts like those seen in the App Store or Netflix apps so much easier to implement, with much less code, and thus less of a headache for the developer. Combined with a diffable data source, managing this data becomes conceptually possible to revisit and maintain over time.</p><h2>🔜 Where This Will Lead</h2><p>Although these are just a few of the new <code>UITableView</code> and <code>UICollectionView</code> APIs introduced with iOS 13, they are likely to make more complex and interactive layouts the standard going forward, specifically because they make them <em>less complex</em> to deal with. Unfortunately for older apps, they would need to wait until they can safely start requiring iOS 13 and newer, as these APIs were unavailable up until then.</p><p>The old APIs exist mainly because computers and phones weren’t aways as fast as they are today, so to save calculation time, the app would keep track of changes as they were being made, ultimately letting the view know about any changes once the user returned to it. Now that processors are so much faster and efficient, an app can easily burn through a few extra cycles doing this calculation after the fact, and only when needed, by using a framework-provided algorithm that is heavily optimized, and get the results in a way that is easily conveyed to the collection or table view.</p><p>If you are interested in learning more about these APIs, check out Apple’s <a href="https://developer.apple.com/documentation/uikit/views_and_controls/collection_views/implementing_modern_collection_views">sample code</a> on both of these topics, which contains tons of examples of really cool screens you can make using these new technologies. The sample code was just updated for iOS 14 since WWDC was not too long ago, so be sure to have the latest beta version of Xcode 12 downloaded if you would like to play around with them.</p><h2>🧰 Alternative Data Source Paradigms</h2><p>Somewhat curiously, the Mac has had different paradigms for representing a data source long before iOS was ever a thing. Specifically, <a href="https://developer.apple.com/documentation/appkit/nsoutlineview"><code>NSOutlineView</code></a>, a subclass of <a href="https://developer.apple.com/documentation/appkit/nstableview"><code>NSTableView</code></a>, actually asks for an array of contents for a given item, and recursively asks for the children of those items as they become necessary when a row is expanded, without dealing with many of the complexities discussed previously. The Finder, for instance, uses this paradigm to represent files and folders inside of other folders, allowing for lots of data to be shown, just not all at once. This is actually a similar design to what diffable data sources offer, so it's interesting that the model that <code>NSOutlineView</code> uses never directly made the jump to iOS, only to be re-implemented from scratch in a much improved way.</p><h2>✨ On the New and Shiny</h2><p>Just because these new technologies exist, however, doesn’t mean you absolutely have to use them. Together, they represent a collection of tools, some of which work better than others depending on the situations being asked of them, so it’s important to use the tool that allows you to build what you want to build. For instance, as soon as <code>UICollectionView</code> came out several years ago, a discussion immediately precipitated around the eventual demise of <code>UITableView</code>. With iOS 14’s introduction of the List type for collection views, those discussions were reignited, now that you can essentially build a table view, and more, with only a collection view.</p><p>However, it’s important to remember that these APIs represent increasingly complicated ways of representing your data. If all you need is a simple list, then there is no need to go through the extra effort of implementing that list in a <code>UICollectionView</code> if you know it’ll only ever be a list — the API will be simpler to work with, and you’ll have to jump through less hoops in the process. If you do eventually want to upgrade, the paradigms between them are simple enough that the transition from <code>UITableView</code> to <code>UICollectionView</code> with the same layout should only require minimal changes.</p><p>Planning ahead of time can save you transitions in the long run. For instance, if you know that you will want to transition between different view layouts, for instance between rows of rectangles and a grid of squares, then a collection view may make for a better starting point, since you’ll be targeting a specific conclusion right from the beginning.</p><p>As a side note, when collection views were released, the underlying implementation of table views was actually swapped out with a shared implementation, simply because collection views are a natural super set of table views. That said, it's important to remember that if you really wanted, you could implement the same functionality <a href="https://github.com/mochidev/MDSpreadViewDemo">completely from scratch</a>, as there is very little magic actually happening behind the scenes, just carefully crafted and optimized algorithms.</p><p>Ultimately though, if you do find yourself having written something completely from scratch only to find out Apple released a new API that supersedes it, it’s likely a good idea to move over to that API as soon as you can, as it will likely be maintained on your behalf, letting you focus on the parts of your app that make it unique, rather than working on aspects that would better fit within a framework.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-2</guid><title>Episode 2: Available in Human Sizes</title><description>We discuss the benefits of finding your niche and specializing when looking for new opportunities, and what would happen if we considered the App Store to be simply a provider, much like an ISP.</description><link>https://codecompletion.io/episodes/2020/ep-2</link><pubDate>Mon, 17 Aug 2020 15:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion, Episode 2! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>Finding your niche and the benefits in specializing when looking for new opportunities.</li><li>How beneficial would it be to consider the App Store as simply a provider, much like an ISP.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Can you explain what is wrong with the following code, how it can break, and show how to fix it?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">struct</span> Person {
    <span class="splashkeyword">var</span> name: <span class="splashtype">String</span>
    <span class="splashkeyword">var</span> age: <span class="splashtype">Double</span>
}

<span class="splashkeyword">let</span> person = <span class="splashcall">askForPerson</span>()
<span class="splashtype">NSLog</span>(<span class="splashstring">"</span>\(person.<span class="splashproperty">name</span>) <span class="splashstring">is %.2f years old today!"</span>, person.<span class="splashproperty">age</span>)
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>A key player in pioneering the digital publishing space, Apple made several printer models in 80s and 90s such as the popular ImageWriter and LaserWriter, but they also made the Apple 410 Color Plotter, a printer that used a stylus along with a selection of inks to literally draw shapes and text on the page.</li></ol><ol start="2"><li>Available for sale for just a couple years, iPod Socks were a series of pouches for iPods woven like socks, and came as a package with six colors: grey, orange, pink, blue, green, and purple. For a limited time, they were also available in human sizes at the Apple Company Store in Cupertino.</li></ol><ol start="3"><li>Known now as a feature that allows videos to be quickly taken by pressing and holding the shutter button on modern iPhones, the Apple QuickTake was a line of video cameras that could be used tethered to a Mac, or on the go thanks to AA batteries.</li></ol><ol start="4"><li>Released in 2006, the iPod Radio Remote was an attachment for then-new iPods that was shaped like a then-unreleased clip-style iPod Shuffle, that allowed compatible iPod users to use their iPods as an FM Radio tuner.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>Ben had the misfortune of going first again to show the others the ropes, followed by Fernando and Johnny. Let's check how they did!</p>

<blockquote>4. Released in 2006, the iPod Radio Remote was an attachment for then-new iPods that was shaped like a then-unreleased clip-style iPod Shuffle, that allowed compatible iPod users to use their iPods as an FM Radio tuner.</blockquote>

<p>Johnny doubted this product ever existed and was the compiler error, but unfortunately it was a <em>code completion</em>! <a href="https://www.apple.com/newsroom/2006/01/10Apple-Announces-the-iPod-Radio-Remote/">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Known now as a feature that allows videos to be quickly taken by pressing and holding the shutter button on modern iPhones, the Apple QuickTake was a line of video cameras that could be used tethered to a Mac, or on the go thanks to AA batteries.</blockquote>

<p>Fernando fumbled last minute and chose this as the error, but it was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Apple_QuickTake">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Available for sale for just a couple years, iPod Socks were a series of pouches for iPods woven like socks, and came as a package with six colors: grey, orange, pink, blue, green, and purple. For a limited time, they were also available in human sizes at the Apple Company Store in Cupertino.</blockquote>

<p>Everyone thought this was true, but it was in fact the <strong>compiler error</strong>, since iPod socks were not only available for sale for nearly a decade, but were unfortunately never available in human sizes… <a href="https://appleinsider.com/articles/12/09/26/apple-removes-ipod-socks-from-online-store">Learn&nbsp;More&nbsp;→</a></p>

<p>Which means that…</p>

<blockquote>1. A key player in pioneering the digital publishing space, Apple made several printer models in 80s and 90s such as the popular ImageWriter and LaserWriter, but they also made the Apple 410 Color Plotter, a printer that used a stylus along with a selection of inks to literally draw shapes and text on the page.</blockquote>

<p>…which Ben thought was a bit too outlandish, was still a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Apple_410_Color_Plotter">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Mystiko</a>. <a href="https://apps.apple.com/us/app/mystiko/id1148340942?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Mystiko on the iMessage App Store today to give it a try.</p>]]></content:encoded></item><item><guid isPermaLink="true">https://codecompletion.io/episodes/2020/ep-1</guid><title>Episode 1: File, New, New Project…</title><description>We discuss how to layout your UI using compositional layouts and diffable data sources, different ways to bring an iPhone UI to the iPad, and ways Apple could make the App Store a better place for both developers and users.</description><link>https://codecompletion.io/episodes/2020/ep-1</link><pubDate>Mon, 10 Aug 2020 15:30:00 +0000</pubDate><content:encoded><![CDATA[<p>Welcome to Code Completion! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code on this brand new show!</p><p>Follow us <a href="https://twitter.com/CodeCompletion">@CodeCompletion</a> on Twitter to hear about our upcoming livestreams, videos, and other content.</p><p>Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to <em>#CompleteTheCode</em>, and share even more things we learned in between episodes.</p><p>You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.</p><h2>⭐️ This Week's Topics</h2><ul><li>How to layout your UI using compositional layouts and diffable data sources.</li><li>Different ways to bring an iPhone UI to the iPad.</li><li>Ways Apple could make the App Store a better place for both developers and users.</li></ul><h2>🚧 #CompleteTheCode</h2><p>This week's <em>#CompleteTheCode</em>:</p><blockquote>Without using a variable as a flag, how can you skip to the next iteration of an outer loop, from inside an inner loop?</blockquote><pre><code class="splashlineNumbers">1
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</code><code><span class="splashkeyword">for</span> row <span class="splashkeyword">in</span> rows {
    <span class="splashkeyword">for</span> column <span class="splashkeyword">in</span> columns {
        <span class="splashkeyword">if</span> column.<span class="splashproperty">shouldSkipToNextRow</span> {
            <span class="splashcomment">// how do you get to the next row?</span>
        }
    }
    <span class="splashcall">finishUpRow</span>(row)
}
</code></pre><p>Be sure to <a href="https://twitter.com/intent/tweet?text=%23CompleteTheCode%20cc%2F%20%40CodeCompletion&original_referer=https%3A%2F%2Fcodecompletion.io">tweet us</a> with hashtag <em><a href="https://twitter.com/hashtag/CompleteTheCode">#CompleteTheCode</a></em> if you know the answer!</p><h2>⚠️ Compiler Error</h2><ol><li>Known as the key with the apple logo, the command key has been represented by the unicode character known as <code>PLACE OF INTEREST SIGN</code> since the Apple III.</li></ol><ol start="2"><li>Used on many systems that are very different from Macs, the control key on Mac OS differentiates itself from the competition by using the <code>UP ARROWHEAD</code> unicode character rather than the abbreviation, bar, or traditional caret notations.</li></ol><ol start="3"><li>Located between the control and command keys on the keyboard, the option key is unoriginally called <code>OPTION KEY</code> in the unicode specification, but was also known as the “closed apple key” on Apple II series computers.</li></ol><ol start="4"><li>Despite being used on some of the earliest computers, the shift modifier on Apple keyboards simply uses the <code>UPWARDS WHITE ARROW</code> character, an approximation of the standardized Level 2 Select key’s original symbol.</li></ol><details><summary>Compilation Results</summary><div class="details">

<p>Ben went first, followed by Spencer. Let's check how they did!</p>

<blockquote>4. Despite being used on some of the earliest computers, the shift modifier on Apple keyboards simply uses the <code>UPWARDS WHITE ARROW</code> character, an approximation of the standardized Level 2 Select key’s original symbol.</blockquote>

<p>Everyone thought this was true, and it is indeed a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Shift_key">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>3. Located between the control and command keys on the keyboard, the option key is unoriginally called <code>OPTION KEY</code> in the unicode specification, but was also known as the “closed apple key” on Apple II series computers.</blockquote>

<p>Spencer thought this was true, while Ben thought this was the error, but it was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Control_key">Learn&nbsp;More&nbsp;→</a></p>

<blockquote>2. Used on many systems that are very different from Macs, the control key on Mac OS differentiates itself from the competition by using the <code>UP ARROWHEAD</code> unicode character rather than the abbreviation, bar, or traditional caret notations.</blockquote>

<p>Spencer thought this was the error, but it was also a <em>code completion</em>! <a href="https://en.wikipedia.org/wiki/Option_key">Learn&nbsp;More&nbsp;→</a></p>

<p>Which means that…</p>

<blockquote>1. Known as the key with the apple logo, the command key has been represented by the unicode character known as <code>PLACE OF INTEREST SIGN</code> since the Macintosh introduced in 1984, though the command key itself was present on the Apple III introduced in 1980, but it was represented by an open Apple logo instead.</blockquote>

<p>is in fact the <strong>compiler error</strong>! <a href="https://en.wikipedia.org/wiki/Option_key">Learn&nbsp;More&nbsp;→</a></p>

</div></details><h2>🎁 Sponsor</h2><p>This week's episode of Code Completion is brought to you by <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Huuungry</a>. <a href="https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8">Click here</a> or search for Huuungry on the iOS App Store today to give it a try.</p>]]></content:encoded></item></channel></rss>