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from	N!#@R ... <[email protected]>
to	[email protected]
date	Tue, Oct 26, 2010 at 11:20 PM
subject	Need help with Javascript issue
mailed-by	gmail.com
signed-by	gmail.com

Hello,

I just visited your blog http://fitzgeraldnick.com/weblog/  for some of the javascript related code snippets and it was really cool! I just thought if you could help me with something that I am trying.. 
I am trying to implement a Logger function that would log something.... when there is an api call on a given object. For e.g.

mapObj.getLatLong( );

Assume I have the 'mapObj' which is from some third party API, which offcourse cannot be tampered. What I want to do is, whenever there is an API call on mapObj, I want the 'Logger' to get executed first, and then the actual API call. So, it's like intercepting the actual call.

I managed to iterate on the mapObj and      if ( typeof ( obj[i] === 'function' ) ) ... bind to the Logger.  I am thinking binding/re-binding would help, but not able to get through it.. 

Logger = function( ) {  
   // logs something - may be arguments, etc...
 }

// execute this anonymous func...
// I have the mapObj
( function( ) {  
     var _ob = arguments[0];
     for ( var  i    in   ob ) {
            if ( typeof ( obj[i] === 'function' ) )  {  
                  // bind to Logger.....
           }
     }
} ) ( mapObj ) ;


mapObj.getLatLong( ) ;    // should execute Logger first, then execute actual call  getLatLong ..

Any help would be really appreciated.

Thanks.