javascriptOff-by-oneEasy

First chunk drops its last item

Time: 0:00

What it should do

firstChunk(arr, size) should return the first `size` items of an array, so firstChunk([1,2,3,4,5], 3) gives [1,2,3].

What goes wrong

firstChunk([1,2,3,4,5], 3) returns [1,2] — one item short.

Hints

This is an off-by-one errors bug

The loop that runs one time too many, the slice that drops the last item, the index that starts in the wrong place.