Write a function that splits an array (first argument) into groups the length of size (second argument) and returns them as a multidimensional array

Question

I am working through a javascript problem that asks me to:

Write a function that splits an array (first argument) into groups the length of size (second argument) an

Answer 1

    function chunkArrayInGroups(arr, size) {

  var temp = [];
  var result = [];

  for (var a = 0; a < arr.length; a++) {
    if (a % size !== size - 1)
      temp.push(arr[a]);
    else {
      temp.push(arr[a]);
      result.push(temp);
      temp = [];
    }
  }

  if (temp.length !== 0)
    result.push(temp);
  return result;
}