Subj : Re: Getting all properties of an JS object
To   : Alex Lee
From : Brendan Eich
Date : Tue Jan 25 2005 10:14 am

Alex Lee wrote:
> Does anyone know how to get all properties (name and value) within my C 
> code of an object defined via JS_DefineProperties() in SpiderMonkey?


It dependes.  If you pass JSPROP_ENUMERATE, then a for/in loop will 
work.  If you want to enumerate all properties including the ones that 
are not enumerable (by for/in), then you need to use jsdbgapi.h.


> Similarly, is there any way to get all properties (name and value) 
> within my C code of an object defined via a JavaScript snippet within my 
> JSContext, i.e. if I executed a snippet such as:
> 
> a = new Object(); a.b = 1; a.c = "foo"


All user-set properties are enumerable, so for (var i in a) ...; will 
iterate i over "b" and "c".

/be

.