make deepEq work in strict js.

[clkao]

No description provided.

[vendethiel]

While I think about it, is there any reason we aren't writing those in LS ? Is Function.toString that evil ?

[michaelficarra]

Function.toString is 110% evil. Its behaviour is unspecified. That's worse than eval.

[clkao]

I think the main issue with Function.toString is closed-over variables, otherwise it's quite useful.

[michaelficarra]

@clkao: But you can't rely on it at all. Tomorrow, it may be gone. It may return garbage every time it is called. It doesn't even have to be deterministic. Some functions can be created and don't have string representations (using Function::bind). It can only possibly work for pure functions. It's a bad idea all around.

[apaleslimghost]

@michaelficarra Harmony is going to standardise it.

[satyr]

http://wiki.ecmascript.org/doku.php?id=harmony:function_to_string

And SpiderMonkey now conforms to that. So barring old SpiderMonkey, Function::toString returning the source should be pretty reliable.