131. implement _.chunk()
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medium - accepted / - tried
_.chunk() splits array into groups with the specific size.
Please implement your chunk(arr: any[], size: number)
chunk([1,2,3,4,5], 1)chunk([1,2,3,4,5], 2)chunk([1,2,3,4,5], 3)chunk([1,2,3,4,5], 4)chunk([1,2,3,4,5], 5)
for size smaller than 1, return an empty array.