Calling function with name as string var

[kapil Gupta]

Hi,
I have the name of a javascript function as a variable. The function name may be in the form of MyNameSpace.myFunction.
One way is to use eval() but it is generally discouraged to use it.
Is there any other way to call a namespaced function whose name is stored in a variable?
Thanks,
Kapil

[Eric Pascarello]

Here is the basic idea with no eval()

var foo = {
  who : function(){ alert("you"); },
  say : function(txt){ alert(txt);}
}

var bar = function(){ alert("candy"); }

String.prototype.callFnc = function(){
    var parts = this.split(".");
    var fnc = window;
    var len = parts.length;
    for(var i=0; i<len; i++){
        fnc = fnc[parts[i]];
    }
    fnc.apply(this,arguments); 
}

"bar".callFnc();
"foo.who".callFnc();
"foo.say".callFnc("WOHOO");

Eric>

[Bear Bibeault]

(MyNameSpace.myFunction)();    

[Cloudgen C.F. Wong]

Another example:

<script type="text/javascript">
var myNameSpace={
	myFunction1:function(){alert("hi!")},
	myFunction2:function(){alert("hello!")},
	myFunction3:function(){alert("good day!")},
};
myNameSpace["myFunction4"]=function(){alert("bye!")};
var myEval={};
for(var a in myNameSpace) myEval["myNameSpace."+a]=myNameSpace[a];
myEval["myNameSpace.myFunction1"]();
myEval["myNameSpace.myFunction2"]();
myEval["myNameSpace.myFunction3"]();
myEval["myNameSpace.myFunction4"]();
</script>