Chunk array on small pieces
npm install array-chunk> Chunk array on small pieces
```
$ npm install --save array-chunk
`js
var arrayChunk = require('array-chunk');
arrayChunk([1, 2, 3, 4], 2);
//=> [[1, 2], [3, 4]]
`
#### arr
Required
Type: array | TypedArray
Your array
#### size
Required
Type: number
Length of nested array , default 1`
* flatten-vertex-data − flattens array data.
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