const split = (arr, chunk) => {
const result = [];
const size = arr.length;
for (let i = 0; i < size; i += chunk) {
result.push(arr.slice(i, i + chunk));
}
return result;
};
const arr = Array.from({ length: 34 }, (_, i) => i);
console.log(split(arr, 4));
/*
run:
[
[ 0, 1, 2, 3 ],
[ 4, 5, 6, 7 ],
[ 8, 9, 10, 11 ],
[ 12, 13, 14, 15 ],
[ 16, 17, 18, 19 ],
[ 20, 21, 22, 23 ],
[ 24, 25, 26, 27 ],
[ 28, 29, 30, 31 ],
[ 32, 33 ]
]
*/