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

g8

// Bonfire: Chunky Monkey
// Author: @piqueen314
// Challenge: http://www.freecodecamp.com/challenges/bonfire-chunky-monkey
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function chunk(arr, size) {
  var newArr = [];
  for (var i=0; i < arr.length; i+=size)
    newArr.push(arr.slice(i,i+size));
  return newArr;
}

chunk(['a', 'b', 'c', 'd'], 2);