Breaks array into chunks of given size.
This is part of package extra-array.
array.chunk(x, [n], [s]);
// x: an array
// n: chunk size (1)
// s: chunk step (n)const array = require("extra-array");
var x = [1, 2, 3, 4, 5, 6, 7, 8];
array.chunk(x, 3);
// [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8 ] ]
array.chunk(x, 2, 3);
// [ [ 1, 2 ], [ 4, 5 ], [ 7, 8 ] ]
array.chunk(x, 4, 3);
// [ [ 1, 2, 3, 4 ], [ 4, 5, 6, 7 ], [ 7, 8 ] ]