Yoan Blanc’s weblog

If you ever tried to use the Packer of Dean Edwards, you probably constating that your script don’t work anymore. It happens to me and I found what did I do wrong.

This cool tool that compress and obfuscate your Javascript code do, at first, an inlining operation. NB: I use the PHP5 script. If Javascript is very cool about syntax, it isn’t anymore when code is inlined. In the following example I will put the mandatory semicolons (;) for uncompressed script in bold. These semicolons are required in inlined code.

var a=0;
var b=2;

if(a > b) {
	var text = "a is bigger than b";
	console.warn(text)
}

for(var i=0; i<b;i++)
	console.log(i + "/" + b);

function C(value) {
	var c = value
}

C.prototype.compare = function(value) {
	if(this.c == value)
		return 0;
	else if(this.c > value)
		return 1;
	else
		return -1
};

Every ; can be removed if you don’t want to compress your JS file.

By the way an intersting project called Fork Javascript that aims to get the best of Prototype and YUI.