✨ Challenge #2: Factory in Action!

Author: monicatvera

2023/challenge-02/README.md

@@ -0,0 +1,28 @@
+# Challenge #2: 🏭 Factory in Action!
+
+## 🔢 Instructions
+
+In Santa's workshop, the elves have a list of gifts they want to manufacture and a limited set of materials.
+
+The gifts are strings, and the materials are characters. Your task is to write a function that, given a list of gifts and the available materials, returns a list of gifts that can be manufactured.
+
+A gift can be manufactured if we have all the necessary materials to make it.
+
+### Example:
+
+```javascript
+const gifts1 = ['tren', 'oso', 'pelota'];
+const materials1 = 'tronesa';
+console.log(manufacture(gifts1, materials1)); // ["tren", "oso"]
+// 'tren' YES because its letters are in 'tronesa'
+// 'oso' YES because its letters are in 'tronesa'
+// 'pelota' NO because its letters are NOT in 'tronesa'
+
+const gifts2 = ['juego', 'puzzle'];
+const materials2 = 'jlepuz';
+console.log(manufacture(gifts2, materials2)); // ["puzzle"]
+
+const gifts3 = ['libro', 'ps5'];
+const materials3 = 'psli';
+console.log(manufacture(gifts3, materials3)); // []
+```

2023/challenge-02/solution.js

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+function manufacture(gifts, materials) {
+  if (!gifts?.length || !materials) {
+    return [];
+  }
+
+  const uniqueMaterials = new Set(materials);
+
+  const doableGifts = gifts.filter((gift) =>
+    [...new Set(gift)].every((char) => uniqueMaterials.has(char))
+  );
+
+  return doableGifts;
+}

2023/challenge-02/solution.spec.js

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+import { manufacture } from "./solution";
+
+describe("Challenge #2: 🏭 Factory in Action!", () => {
+  const testCases = [
+    createTestCase(
+      [["tren", "oso", "pelota"], "tronesa"],
+      ["tren", "oso"],
+      "should return gifts that can be manufactured"
+    ),
+    createTestCase(
+      [["juego", "puzzle"], "jlepuz"],
+      ["puzzle"],
+      "should return gifts that can be manufactured"
+    ),
+    createTestCase(
+      [["libro", "ps5"], "psli"],
+      [],
+      "should return an empty array when no gifts can be manufactured"
+    ),
+    createTestCase(
+      [["calcetin", "sueter", "gorro"], "saetr"],
+      ["calcetin", "sueter", "gorro"],
+      "should return all gifts when all can be manufactured"
+    ),
+    createTestCase(
+      [[], "abc"],
+      [],
+      "should return an empty array when no gifts are given"
+    ),
+    createTestCase(
+      [["robot", "laptop", "helicoptero"], "abc"],
+      [],
+      "should return an empty array when no gifts can be manufactured"
+    ),
+  ];
+
+  it.each(testCases)("#$# $description", ({ input, expected, description }) => {
+    expect(manufacture(...input)).toEqual(expected);
+  });
+});
+
+function createTestCase(input, expected, description) {
+  return { input, expected, description };
+}

README.md

@@ -98,6 +98,7 @@ This repository contains the solutions to the challenges proposed by [@midudev](
 |  #  |                           Challenge                           | Difficulty[^1] |               Solution                |
 | :-: | :-----------------------------------------------------------: | :------------: | :-----------------------------------: |
 | 01  |   [First repeat gift!](2023/challenge-01)    |       🟢       | [Show](2023/challenge-01/solution.js) |
+| 02  |  [Factory in Action!](2023/challenge-02)  |       🟢       | [Show](2023/challenge-02/solution.js) |
 
 [^1]: **Difficulty**: 🟢 Easy 🟠 Medium 🔴 Hard 🟣 Very Hard