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

gistfile1.txt

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

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

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