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Re: calling function within (function() {...})();

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Scott Sauyet wrote:

> Thomas 'PointedEars' Lahn  wrote:
>> Eric Bednarz wrote:
>>> Gregor Kofler  wrote:
>>>> Andrew Poulos wrote:
>>>>> If I have this
>>>>> 
>>>>> var x = (function(){
>>>>> return {
>>>>> a : function(){},
>>>>> b : function(){}
>>>>> };
>>>>> })();
>>>
>>>>> how do I call 'b' from within 'a'?
>>>
>>> x.b();
>>>
>>> but I'd rather have something like
>>> 
>>> var x = (function () {
>>> function a() {
>>> b();
>>> }
>>> function b() {
>>
>>> }
>>> return {
>>> a: a,
>>> b: b
>>> };
>>> }());
>>
>> There is no inherent advantage in that.  In fact, it is slightly less
>> efficient than the original code because the `a' and `b' identifiers need
>> to be resolved first, and it requires more maintenance effort because one
>> needs to need track the identifiers.
> 
> There is an advantage of some sort of safety.  Follow either one of
> those snippets by
> 
>     y = x;
>     y.a(); // works correctly
> 
>     x = false;
>     y.a(); // throws TypeError only in the first approach

Any potential safety gained this way only mitigates the unnecessary, 
potentially harmful dependency introduced by Eric with the closure (by 
contrast to the rather clean, original code).  It should be this.b(),
not x.b().


PointedEars
-- 
When all you know is jQuery, every problem looks $olvable.

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Thread

calling function within (function() {...})(); Andrew Poulos <ap_prog@hotmail.com> - 2011-11-04 23:18 +1100
  Re: calling function within (function() {...})(); Gregor Kofler <usenet@gregorkofler.com> - 2011-11-04 14:06 +0100
    Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-04 14:13 +0100
      Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-04 15:49 +0100
        Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-04 16:35 +0100
          Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-04 20:44 +0100
            Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-04 21:16 +0100
              Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-04 21:24 +0100
                Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-04 21:46 +0100
                Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-04 23:29 +0100
        Re: calling function within (function() {...})(); Scott Sauyet <scott.sauyet@gmail.com> - 2011-11-04 10:29 -0700
          Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-09 15:17 +0100
            Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-09 20:13 +0100
              Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-11 23:26 +0100
                Re: calling function within (function() {...})(); Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2011-11-11 23:31 +0100
                Re: calling function within (function() {...})(); Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-12 00:38 +0100

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