Implement Lodash's chunk
Write chunk(array, size): split array into arrays of size elements; the last one may be shorter.
sizeis rounded down, and a size below 1 returns[].- Leave the input alone.
chunk([1, 2, 3, 4, 5], 2) // [[1, 2], [3, 4], [5]] chunk([1, 2, 3], 0) // []
Hints
Hint 1
Step i by size and take slice(i, i + size).
Hint 2
Clamp the size first, because a size of 0 would loop forever — and Math.floor(NaN) is NaN, which fails every comparison.