Bonfire: Chunky Monkey #2

function chunk(arr, size) {
  var temp = [], 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;
}