Question

I just want to assign a variable to a function so it can be invoked later but in this fiddel the function is invoked every time I press button ‘invoke’

Should it not just assign the function to the varialbe ‘fun’ and not call the alert ?

fiddle : http://jsfiddle.net/vkvUR/

code :

$("#button").click(myFun);

    <input name="Button3" type="button" value="Invoke" id="button">

    function myFun(myarg){   
        var fun = alert(myarg); 

    }  

    function myFunParam(myFun){    
        if (typeof myFun === "function")       
            myFun('foo'); // alerts "foo" 
    } 

Answer 1

You need to assign an anonymous function to fun containing your alert call.

---

Change:

var fun = alert(myarg); 

To:

var fun = function(){
   alert(myarg); 
}

---

http://jsfiddle.net/Curt/vkvUR/1/

And heres a version calling fun():

http://jsfiddle.net/Curt/vkvUR/2/