Subj : Re: uneval
To   : netscape.public.mozilla.jseng,de.comp.lang.javascript
From : =?ISO-8859-1?Q?Georg_Maa=DF?= <georg@bioshop.de>
Date : Fri Apr 25 2003 08:08 pm

Dietmar Meier wrote:
> Georg Maaß wrote:
> 
> 
>>What does the global function uneval do? I know, what eval does, but
>>what does uneval? Where can I find documentation about that function?
>>The function resides inside Mozilla and the shell as well. So it seems
>>to be part of the language and not part of the host.
> 
> 
> I didn't find any documentation neither, but I found out that you might
> use uneval for serialization of objects and arrays. Here's an example:
> 
> var a = new Object;
> a.foo = 3;
> a. bar = 42;
> alert(uneval(a));
> 
> var b = new Array();
> for (var i=0; i<3; i++) {
>   b[i] = new Array();
>   for (var j=0; j<2; j++) {
>     b[i][j] = new Array();
>     for (var k=0; k<4; k++)
>       b[i][j][k] = Math.floor(Math.random() * 42);
>   }
> }
> alert(uneval(b));
> 
> 
> f'up2 dcljs gesetzt, da ich npmj nicht lese.
> 
> ciao, dhgm
> 

js> b.toSource();
[[[15, 0, 15, 26], [23, 14, 31, 4]], [[5, 3, 17, 9], [8, 36, 29, 9]], 
[[10, 24, 28, 32], [31, 16, 23, 9]]]
js> typeof uneval(b);
string
js> b.toSource=function(){return 'test'};

function () {
     return "test";
}

js> b.toSource();
test
js> uneval(b);
test


As you see, it simply calls the toSource method. 
 

-- 
Georg Maaß   -   bioshop.de       D-93466 Chamerau, Roßbergweg 42
JavaScript, C++ Engineering
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