split array in chunks es6 code example

Example 1: react split array into chunks

const chunkSize = 10;
const arr = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17];
const groups = arr.map((e, i) => { 
     return i % chunkSize === 0 ? arr.slice(i, i + chunkSize) : null; 
}).filter(e => { return e; });
console.log({arr, groups})

Example 2: chunk an array

function __chunk(array, size) {
  let chunkArray = [];
  return function _chunk(chunk = array) {
    if (chunk.length < size) {
      return chunkArray.push(chunk) && chunkArray;
    }
    return chunkArray.push(chunk.slice(0, size)) && _chunk(chunk.slice(size));
  };
}