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77 lines
1.7 KiB
Markdown
77 lines
1.7 KiB
Markdown
---
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id: 6a2037a68a0bc2aef0006001
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title: "Challenge 339: Array Chunks"
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challengeType: 29
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dashedName: challenge-339
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---
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# --description--
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Given an array and a chunk size, return the array split into sub-arrays of that size.
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- The last chunk may be smaller if the array doesn't divide evenly.
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# --hints--
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`chunk_array([1, 2, 3, 4, 5, 6], 3)` should return `[[1, 2, 3], [4, 5, 6]]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(chunk_array([1, 2, 3, 4, 5, 6], 3), [[1, 2, 3], [4, 5, 6]])`)
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}})
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```
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`chunk_array([1, "two", 3, "four", 5, "six", 7, "eight"], 2)` should return `[[1, "two"], [3, "four"], [5, "six"], [7, "eight"]]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(chunk_array([1, "two", 3, "four", 5, "six", 7, "eight"], 2), [[1, "two"], [3, "four"], [5, "six"], [7, "eight"]])`)
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}})
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```
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`chunk_array([1, 2, 3, 4, 5], 3)` should return `[[1, 2, 3], [4, 5]]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(chunk_array([1, 2, 3, 4, 5], 3), [[1, 2, 3], [4, 5]])`)
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}})
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```
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`chunk_array(["a", "b", "c", "d", "e"], 1)` should return `[["a"], ["b"], ["c"], ["d"], ["e"]]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(chunk_array(["a", "b", "c", "d", "e"], 1), [["a"], ["b"], ["c"], ["d"], ["e"]])`)
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}})
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```
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`chunk_array([1, 2, 3], 5)` should return `[[1, 2, 3]]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(chunk_array([1, 2, 3], 5), [[1, 2, 3]])`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def chunk_array(arr, size):
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return arr
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```
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# --solutions--
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```py
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def chunk_array(arr, size):
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return [arr[i:i + size] for i in range(0, len(arr), size)]
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```
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