JavaScript-Packer

JAVASCRIPT GOLFING TOOL DEMO - www.scriptcompress.com/golf.htm

One technique I use often is taking something like x=x.split(" ").join("");y=y.split(" ").join(""); that I may use often in a script and make it a bit smaller (or part of obfuscating) throughout the script. I will set it up like x=x[S='split'](" ")[J='join']("");y=y[S](" ")[J]("");

Take a script like:

var roll={d4:function(){return Math.floor(4*Math.random())+1},d6:function(){return Math.floor(6*Math.random())+1},d8:function(){return Math.floor(8*Math.random())+1},d10:function(){return Math.floor(10*Math.random())+1},d12:function(){return Math.floor(12*Math.random())+1},d20:function(){return Math.floor(20*Math.random())+1}};alert("rolling D4 : "+roll.d4());alert("rolling D20 : "+roll.d20());

Can be rewritten as:

JavaScript-Packer

function replacer(s, f, r) {
//s=string 
//f=find 
//r=replace
  return s.split(RegExp(eval(f))).join(r);
}
alert(replacer("480Vi76s76i5t7 7w5876w87w58.5W76H2A56K.2134c54o67m0", "/[0-9]/g", ""));

JavaScript-Packer

function characterWays(a) {
  var decimal = a.charCodeAt(0);
  var octal = decimal.toString(8);
  var hex = decimal.toString(16);
  var oct = "\\" + octal;
  var hexValue = "0x" + hex;
  var uniValue = "U+" + hex;
  var escUni = "" + hex;
  var escURL = "%" + hex;
  var escHex = "\\x" + hex;

JavaScript-Packer

function allAnagrams(r) {
  var n, a, t, l, e, s;
  if (r.length < 2) {
    return [ r ];
  }
  for (n = [], a = 0; a < r.length; a++) {
    for (t = r[a], l = r.substr(0, a) + r.substr(a + 1, r.length - 1), e = allAnagrams(l), 
    s = 0; s < e.length; s++) {
      n.push(t + e[s]);
    }

JavaScript-Packer

function fullEscape(r){
return r.replace(/./g, function(e){
    return "%"+e.charCodeAt(0).toString(16);
});
};
alert(fullEscape("JavaScript Packer"));

JavaScript-Packer

function escapeHTML(Δ){
return Δ.replace(/./g, function(e){
   return "&#"+e.charCodeAt(0)+";";
});
};
alert(escapeHTML("JavaScript Packer"));

JavaScript-Packer

function octal(П){
return П.replace(/./g, function(e){
    return "\\"+e.charCodeAt(0).toString(8);
});
};
alert(octal("JavaScript Packer"));
//extreme JavaScript escaping

JavaScript-Packer

function hex(Δ){
return Δ.replace(/./g, function(e){
    return "\\x"+e.charCodeAt(0).toString(16);
});
};
alert(hex("JavaScript Packer"));
//extreme JavaScript escaping

JavaScript-Packer

function codepoints(Δ) {
  return Δ.replace(/./g, function(Δ) {
    return Δ.charCodeAt(0) + " ";
  }).trim().replace(/ /g, ",");
}
alert(codepoints("JavaScript Packer"));

JavaScript-Packer

//212 bytes
function codepoints(ΔstringΔ) {
  return ΔstringΔ.replace(/./g, function(ΔstringΔ) {
    return ΔstringΔ.charCodeAt(0) + " ";
  }).trim().replace(/ /g, ",");
}
alert(codepoints("JavaScript Packer"));

//first lets get rid of uneeded whitespace and linebreaks