Apr 01 2009

3

Javascript Obfuscation

Category: Javascript —

In recent weeks my plate has been full as I plan for a big move. When I get stressed I usually play a game of chess to help relax a bit. Last night I took a different approach. I created my own brain teaser. I haven’t played golf with the following code yet, so the code isn’t optimized and it could be greatly reduced. The code is in pure javascript, no libraries, but it does require a decent javascript engine to handle forEach, map etc. Sorry IE.

(function() {
    var r = function(a) {
        if (a == undefined) return t;
        isNaN(a) ? (function(){
        t = [a.match(/.{5}/g).map(function(p) {
             return parseInt(p, 33).toString(10);
         	}).join('').match(/.{6}/g).map(function(p) {
             	return parseInt(p, 7).toString(17);
         	}).join('').match(/.{4}/g).reverse().map(function(p) {
             	var a = p.split('');
             	return a[1] + a[3] + a[0] + a[2];
         	}).join('')].map(function(p) {
             	var a = p.match(/.{2}/g);
             	a.forEach(function(c, i) { b[i % 3].push(c); });
             	return b[2].join('') + b[0].join('') + b[1].join('');
         	})[0].match(/.{2}/g).map(function(p) {
             	var x = p.split('');
             	return String.fromCharCode(parseInt(x[1] + x[0], 17).toString(10));
         	}).join('');
        })() : (function(){
            d = a.toString().split(''); l = d.length; p = t.split('');
            if (l == 3) { d.forEach(function(i) { p.push(p[i]); }); t = p.join(''); }
	    	else { t = d.map(function(i){ return p[i];}).join('') + p.join(''); }
        })();
        return arguments.callee;
    }, t = '', a, p, b = [[], [], []],c,i,d,l;
    return r;
})()('sbuq1iunojjo8q7')(165)(12)();

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