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30-seconds-of-code/snippets/chunk-array.md
2017-12-12 11:30:50 -05:00

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### Chunk Array
Creates an array of elements split into groups the length of size.
If array can't be split evenly, the final chunk will be the remaining elements.
```js
const chunk = (arr, size) =>
Array
.apply(null, {length: Math.ceil(arr.length/size) })
.map((value, index) => arr.slice(index*size, index*size+size) )
// const myArray = [2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2];
// chunk(myArray, 3) -> [ [ 2, 2, 2 ], [ 2, 2, 2 ], [ 3, 2, 3 ], [ 2, 3, 2 ], [ 2 ] ]
```