JavaScript Golfer Tool

golf.txt

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:

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

We just saved 35 bytes on a small scale.

To get the value from a textareaa with id="whak", we normally have a long call for it like:

document.getElementById("whak").value

and we may need to call it many times. This can inflate our script fast!

If we set some variables like:

var W = document, H = "getElementById", A = "whak", K = "value";

now we can use:

W[H](A)[K]

instead of document.getElementById("whak").value all the time (saving 28 bytes each time eventually).