split array into smaller arrays based on contents javascript code example

Example 1: js split array into smaller arrays

Array.prototype.chunk = function(n) {
  if (!this.length) {
    return [];
  }
  return [this.slice(0, n)].concat(this.slice(n).chunk(n));
};
console.log([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15].chunk(5));

Example 2: split array in smaller arrays

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