useful for String.fromCharCode();

toCharCode.js

String.prototype.toCharCode = function(){
    var str = this.split('');
    var work = [];
    for (var i = 0; i < str.length; ++i){
        work.push(str[i].charCodeAt(0));
    }
    return work;
};
 
console.log('test'.toCharCode().join(','));

var toCharCode = function(x) {
  var o, e = x.split(""), t = [];
  for (o in e) t.push(e[o].charCodeAt(0));
  return t;
};

var unCharCode = function(x) {
  return this["eval"]("String.fromCharCode(" + x + ")");
};

console.log(toCharCode("test").join(","));

console.log(unCharCode("119,119,119,46,87,72,65,75,46,99,111,109"));