http://www.freecodecamp.com/patrickcurl 's solution for Bonfire: Convert HTML Entities

bonfire-convert-html-entities.js

// Bonfire: Convert HTML Entities
// Author: @patrickcurl
// Challenge: http://www.freecodecamp.com/challenges/bonfire-convert-html-entities
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function convert(str) {
  // :)
  var arr = str.split("");
  arr.forEach(function(x,y){
    if(x === "&"){
      arr[y] = "&";
    }
    if(x === ">"){
      arr[y] = ">";
    }
    if(x === "<"){
      arr[y] = "&lt;";
    }
    if(x === '"'){
      arr[y] = "&quot;";
    }
    if(x === "'"){
      arr[y] = "&apos;";
    }
  });
  return arr.join("");
}

convert("Dolce & Gabbana");