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‎10th.js

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function x() {
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var a=7;
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function y() {
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console.log(a);
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}
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return y;
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}
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var z = x();
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console.log(z);
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//..........
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z();
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// function z() {
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// var b=900;
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// function x() {
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// var a=7;
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// function y() {
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// console.log(a, b);
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// }
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// y();
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// }
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// x();
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// }
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// z();

‎11th.js

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function x() {
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for(var i=1; i<=5; i++){
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function close(x) {
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setTimeout(function() {
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console.log(x);
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}, x*1000);
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}
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close(i);
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}
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for(let i=1; i<=5; i++){
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setTimeout(function() {
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console.log(i);
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}, i*1000);
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}
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console.log("satyam");
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}
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x();
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// function x() {
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// var i = 1;
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// setTimeout(function() {
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// console.log(i);
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// }, 3000);
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// console.log("satyam");
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// }
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// x();

‎13th.js

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// function statement
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function statement() {
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console.log("a called");
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}
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statement();
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// function expression a.k.a. function declaration
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var b = function () {
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console.log("b called");
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}
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b();
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// anonymous function
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// function () {
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// }
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// Named Function Expression
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var c = function Named() {
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console.log("Named Function Expression called");
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}
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c();
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// Named(); // Reference error in this line
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// First Class Functions/Citizens
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var d = function (param1) {
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console.log(param1);
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}
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d(function () {});

‎14th.js

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// What is a Callback function in JavaScript
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// setTimeout(function () {
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// console.log("timer");
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// }, 5000);
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// function x(y) {
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// console.log("x");
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// y();
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// }
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// x(function y() {
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// console.log("y");
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// });
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function attachEventListners() {
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let count = 0;
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document.getElementById("clickMe")
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.addEventListener("click", function xyz() {
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console.log("button clicked", ++count);
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});
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}
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attachEventListners();
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‎4th.js

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var x = 1;
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a();
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b();
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console.log(x);
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function a() {
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var x = 10;
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console.log(x);
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}
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function b() {
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var x = 100;
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console.log(x);
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}

‎6th.js

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var a;
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console.log(a);
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a =10;
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console.log(a);
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a = "satyam";
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console.log(a);
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// if(a===undefined) {
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// console.log("a is undefined");
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// }
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// else {
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// console.log("a is not undefined");
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// }

‎Readme.md

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# Introduction to JavaScript
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This contains the learning path i followed in order to learn JavaScript through YouTube by Akshay Saini.
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## YouTube Playlist: https://youtube.com/playlist?list=PLlasXeu85E9cQ32gLCvAvr9vNaUccPVNP

‎currying.js

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// let multiply = function (x, y) {
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// console.log(x*y);
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// }
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// let multiplyTwo = multiply.bind(this, 2);
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// multiplyTwo(5);
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let multiply = function (x) {
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return function (y) {
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console.log(x*y);
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}
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}
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let multiplyTwo = multiply(2);
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multiplyTwo(6);

‎index.html

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<!DOCTYPE html>
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<html lang="en-US">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Namaste Javascript</title>
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<script src="14th.js" defer></script>
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</head>
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<body>
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<h1 id="heading">"Hello World"</h1>
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<button id="clickMe">click me</button>
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<!-- this button is added for episode number 14th -->
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</body>
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</html>

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