http://www.freecodecamp.com/dbagia 's solution for Bonfire: Chunky Monkey

bonfire-chunky-monkey?solution=function%20chunk(arr%2C%20size)%20%7B%0A%20%20%2F%2F%20Break%20it%20up.%0A%20%20var%20rArr%20%3D%20%5B%5D%2C%20l%20%3D%20Math.ceil(arr.length%2Fsize)%3B%0A%0A%20%20for(var%20i%3D0%3B%20i%3Cl%3B%20i%2B%2B)%7B%0A%20%20%20%20rArr.push(arr.splice(0%2C%20size))%3B%0A%20%20%7D%0A%20%20return%20rArr%3B%0A%7D%0A%0Achunk(%5B%22a%22%2C%20%22b%22%2C%20%22c%22%2C%20%22d%22%5D%2C%202)%3B%0A.js

// Bonfire: Chunky Monkey
// Author: @dbagia
// Challenge: http://www.freecodecamp.com/challenges/bonfire-chunky-monkey?solution=function%20chunk(arr%2C%20size)%20%7B%0A%20%20%2F%2F%20Break%20it%20up.%0A%20%20var%20rArr%20%3D%20%5B%5D%2C%20l%20%3D%20Math.ceil(arr.length%2Fsize)%3B%0A%0A%20%20for(var%20i%3D0%3B%20i%3Cl%3B%20i%2B%2B)%7B%0A%20%20%20%20rArr.push(arr.splice(0%2C%20size))%3B%0A%20%20%7D%0A%20%20return%20rArr%3B%0A%7D%0A%0Achunk(%5B%22a%22%2C%20%22b%22%2C%20%22c%22%2C%20%22d%22%5D%2C%202)%3B%0A
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function chunk(arr, size) {
  // Break it up.
  var rArr = [], l = Math.ceil(arr.length/size);

  for(var i=0; i<l; i++){
    rArr.push(arr.splice(0, size));
  }
  return rArr;
}

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