chunk algorithim in js code example

Example 1: javascript array split chunk

const chunk = (arr, size) => arr.reduce((acc, e, i) => (i % size ? acc[acc.length - 1].push(e) : acc.push([e]), acc), []);

// Examples
chunk([1, 2, 3, 4, 5, 6, 7, 8], 3);     // [[1, 2, 3], [4, 5, 6], [7, 8]]
chunk([1, 2, 3, 4, 5, 6, 7, 8], 4);     // [[1, 2, 3, 4], [5, 6, 7, 8]]

Example 2: split array in smaller arrays

const splittedArray = [];
  while (originalArr.length > 0) {
    splittedArray.push(originalArr.splice(0,range));  
  }