Subj : Re: [spidermonkey]How to: get another variable values from JS?
To   : netscape.public.mozilla.jseng
From : Brendan Eich
Date : Thu Jun 30 2005 11:16 am

Brendan Eich wrote:
> laser wrote:
> 
>> I also have another question, when I use spidermonkey to excute JS
>> like:
>>
>> var ln = 5;
>> var ln1;
>> ln1 = ln*2;
>>
>> I can get the values of variable ln1 by using API JS_EvaluateScript and
>> JSVAL_TO_INT, but how can I get the values of variable ln?
> 
> 
> 
> The value of a script is the value of the last expression statement 
> evaluated in it.  That may be what you mean by "get the value of ln1" 
> (the *rval out parameter of JS_EvaluateScript, for this script).  To get 
> ln, you could call JS_GetProperty(cx, global "ln", &v).

Oops, dropped a , after global in that call expression -- of course, 
global denotes the object you passed to JS_EvaluateScript as the |obj| 
second parameter (*).

/be

(* Or the last object on obj's scope chain, linked by the parent slot, 
if different from obj.  See JSOPTION_VAROBJFIX comments in jsapi.h.)

.