Calling a function from a variable

[docmattman]

Is it possible in javascript to assign a function name to a variable and use that variable to call the function, like this:

var funcToCall = "MyCustomFunction";
funcToCall();

Is there a way to accomplish something like this?

[Brandoe85]

Curious, why would you need to do this instead of calling the function by it's name?

[docmattman]

I guess the above code by itself is pointless, however there are instances where I would want to call a function that accomplishes general tasks, but then depending on the value that I pass the function, it will call whatever followup function I pass to it. Almost like a callback function. I am mainly a PHP programmer and I've run into MANY instances where this type of functionality is almost critical for me.

[gph]

window["MyCustomFunction"]();

[liorean]

Rather easy thing to do:var
oFn={
functionName0:function(){},
functionName1:function(){},
/.../
functionNamen:function(){}};

// Use this if you need to be able to call the functions as methods on
// an object. Otherwise you can just drop this function.
function callFunction(sFnName,aArgs,oObject){
if(!(sFnName in oFn))
throw new Error('Error: function "'+sFnName+'" does not exist.');
return oFn[sFnName].apply(oObject,aArgs);
}And then you can call the functions by a string like so:// Call the functions as methods on an object:
callFunction(sFnName,aArgs,oObject);

// Just call the functions:
oFn[sFnName](arg0, arg1, ... , argn);