js array chunk function

array_chunk.js

// version 1 원본 훼손
const chunk = (list, size) =>
  new Array(parseInt(list.length / size))
  .fill()
  .map(() => list.splice(0, size));

// version 2 원본 유지
const chunk = (list, size) =>
  new Array(parseInt(list.length / size))
  .fill()
  .map((e, i) => list.slice(i * size, (i + 1) * size));