Protecting JavaScript? Or use Something else?

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Protecting JavaScript? Or use Something else?

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How can I obfuscate JavaScript?

I have been working on a web app in JavaScript. Nearing complete.

How do I protect me JavaScript code from someone copying it? I mean if you view my page source, it references the .js files and one could really steal these.

Should I be using something else? RoR?

Does Google Maps have a RoR API?

+3 A:

Your closest bet would be to use something like

People will still be able to steal and use your code though, it will just be harder to modify.

Marko 2010-10-06 20:19:46

Important to note that none of these will stop someone from using that javascript.

2010-10-06 20:22:40

Yup I've added that in.

Marko 2010-10-06 20:24:10

I'd add a caveat to this....I would say this makes it marginally *if at all* harder if the person looking knows what they're doing.

Nick Craver 2010-10-06 20:31:53

Thanks @Nick, I'm not even going to bother to prove you wrong, but it can't certainly be easy to read something like: `var _0x70fa=["\x61\x73\x6B\x31","\x0A","\x4F\x4B"];var a=_0x70fa[0];function s(_0xd48bx3){alert(_0xd48bx3+_0x70fa[1]+a);} ;s(_0x70fa[2]);` though you could use another tool to convert it back to sane Javascript.

Marko 2010-10-06 20:33:38

@Marko - Sure it is, paste here: http://jsbeautifier.org/ Hit beautify, instantly: `var a = 'ask1'; function s(_0xd48bx3) { alert(_0xd48bx3 + '\x0A' + a); }; s('OK');`. Wacky variable name, but hard to figure out? not really :) I didn't say no tools were involved, just that's it's trivial to "unobfuscate" the code.

Nick Craver 2010-10-06 20:43:10

Amen to that @Nick. All I'm saying it adds an extra step in reading the code since it has to go through a beautifier and maybe some manual labor. Please don't reply, you're 100% right :)

Marko 2010-10-06 20:46:12

ansaurus

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Protecting JavaScript? Or use Something else?

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