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111 lines
2.1 KiB
Markdown
111 lines
2.1 KiB
Markdown
---
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id: a9bd25c716030ec90084d8a1
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title: Chunky Monkey
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challengeType: 1
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forumTopicId: 16005
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dashedName: chunky-monkey
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---
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# --description--
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Write a function that splits an array (first argument) into groups the length of `size` (second argument) and returns them as a two-dimensional array.
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# --hints--
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`chunkArrayInGroups(["a", "b", "c", "d"], 2)` should return `[["a", "b"], ["c", "d"]]`.
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```js
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assert.deepEqual(chunkArrayInGroups(['a', 'b', 'c', 'd'], 2), [
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['a', 'b'],
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['c', 'd']
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5], 3)` should return `[[0, 1, 2], [3, 4, 5]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5], 3), [
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[0, 1, 2],
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[3, 4, 5]
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5], 2)` should return `[[0, 1], [2, 3], [4, 5]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5], 2), [
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[0, 1],
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[2, 3],
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[4, 5]
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5], 4)` should return `[[0, 1, 2, 3], [4, 5]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5], 4), [
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[0, 1, 2, 3],
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[4, 5]
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6], 3)` should return `[[0, 1, 2], [3, 4, 5], [6]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6], 3), [
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[0, 1, 2],
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[3, 4, 5],
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[6]
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4)` should return `[[0, 1, 2, 3], [4, 5, 6, 7], [8]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4), [
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[0, 1, 2, 3],
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[4, 5, 6, 7],
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[8]
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]);
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```
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`chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 2)` should return `[[0, 1], [2, 3], [4, 5], [6, 7], [8]]`.
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```js
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assert.deepEqual(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 2), [
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[0, 1],
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[2, 3],
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[4, 5],
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[6, 7],
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[8]
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]);
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```
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# --seed--
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## --seed-contents--
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```js
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function chunkArrayInGroups(arr, size) {
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return arr;
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}
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chunkArrayInGroups(['a', 'b', 'c', 'd'], 2);
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```
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# --solutions--
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```js
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function chunkArrayInGroups(arr, size) {
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let out = [];
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for (let i = 0; i < arr.length; i += size) {
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out.push(arr.slice(i, i + size));
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}
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return out;
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}
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chunkArrayInGroups(['a', 'b', 'c', 'd'], 2);
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```
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