Comments on: Javascript compression with unicode characters http://www.thespanner.co.uk/2009/08/15/javascript-compression-with-unicode-characters/ Javascript blog with messed up syntax inside Thu, 26 Jan 2012 01:38:34 +0000 hourly 1 By: Free JavaScript Code http://www.thespanner.co.uk/2009/08/15/javascript-compression-with-unicode-characters/#comment-1617 Free JavaScript Code Fri, 21 Aug 2009 03:06:26 +0000 http://www.thespanner.co.uk/?p=487#comment-1617 very cool & good script, thank you very much for sharing. very cool & good script, thank you very much for sharing.

]]> By: Gareth Heyes http://www.thespanner.co.uk/2009/08/15/javascript-compression-with-unicode-characters/#comment-1616 Gareth Heyes Sat, 15 Aug 2009 12:48:20 +0000 http://www.thespanner.co.uk/?p=487#comment-1616 Yeah ok character compression please join the contest and create a better one ;) http://sla.ckers.org/forum/read.php?24,29866,29875 Yeah ok character compression please join the contest and create a better one ;)

http://sla.ckers.org/forum/read.php?24,29866,29875

]]> By: Andrea Giammarchi http://www.thespanner.co.uk/2009/08/15/javascript-compression-with-unicode-characters/#comment-1615 Andrea Giammarchi Sat, 15 Aug 2009 11:47:07 +0000 http://www.thespanner.co.uk/?p=487#comment-1615 man, you are confusing compression with obfuscation. If you have not an algorithm or a look up table you could even increase the size, rather than compress it. Your example: <code> original = "alert(1)"; compressed = "◮ᾥѵ٨ፍ"; function realLength(s) { var c,b=0,l=s.length; while(l){ c=s.charCodeAt(--l); b+=(c<128)?1:((c<2048)?2:((c<65536)?3:4)); }; return b; }; alert([ realLength(original), realLength(compressed) ]); </code> It's 8 bytes for the original string, 13 for the compressed one ... is that compression? Is that efficient? Do not mess up concept and keep trying with your good work! Regards man, you are confusing compression with obfuscation. If you have not an algorithm or a look up table you could even increase the size, rather than compress it. Your example:
<code>
original = "alert(1)";
compressed = "◮ᾥѵ٨ፍ";
function realLength(s) {
var c,b=0,l=s.length;
while(l){
c=s.charCodeAt(–l);
b+=(c<128)?1:((c<2048)?2:((c<65536)?3:4));
};
return b;
};
alert([
realLength(original),
realLength(compressed)
]);
</code>
It’s 8 bytes for the original string, 13 for the compressed one … is that compression? Is that efficient? Do not mess up concept and keep trying with your good work!

Regards

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