http://www.freecodecamp.com/minsooshin 's solution for Bonfire: Binary Agents

bonfire-binary-agents.js

// Bonfire: Binary Agents
// Author: @minsooshin
// Challenge: http://www.freecodecamp.com/challenges/bonfire-binary-agents
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function binaryAgent(str) {
  var arr = str.split(' '),
      newStr = '';
  arr.forEach(function(val) {
    var sum = 0;
    for (var i = 0; i < val.length; i++) {
      sum += val[i] * Math.pow(2, val.length - 1 - i);
    }
    newStr += String.fromCharCode(sum);
  });
  
  return newStr;
}

binaryAgent("01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111");
//=> Aren't bonfires fun!?