jquery plugin pass value by function return

Question

I have a simple jquery plugin. It is working fine when i pass a value. But not working when a function returns a value. It's shows the function defenition.

Please try this in Jsfiddle

(function ( $ ) {
    $.fn.greenify = function( options ) {

        var settings = $.extend({
            // These are the defaults.
            color: "#556b2f",
            backgroundColor: "white",
            selectedID:function(){}    
        }, options );

        alert(settings.selectedID);
    };
}( jQuery ));


//Plugin Call
$( "div" ).greenify({
    color: "orange",
    //selectedID:6  it is working fine
    selectedID:function (){return 5}
});

You're not executing the function, just passing a function object. — elclanrs
– elclanrs, Commented Oct 18, 2013 at 6:32
Why are you wanting to pass a function there? Why is the default value specified for selectedID a function? The name "selectedID" implies that it will be an ID (number or string), not a function, so if you want to use a function when you call .greenify() you'd need to call your function yourself and pass the return. If the .greenify() plugin is expecting selectedID to be a function then the plugin code would need to treat it as such and call it by adding parentheses (alert(settings.selectedID())). — nnnnnn
– nnnnnn, Commented Oct 18, 2013 at 6:34

Arun P Johny · Accepted Answer · 2013-10-18 06:32:36Z

4

You are passing a function reference to alert() when you call alert(settings.selectedID), instead you need to invoke the function referred by settings.selectedID and pass the value returned by it to alert()

So try

alert(settings.selectedID());

Demo: Fiddle

answered Oct 18, 2013 at 6:32

Arun P Johny

389k68 gold badges532 silver badges532 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

nrsharma · Accepted Answer · 2013-10-18 06:34:27Z

0

You are missing "()" here

alert(settings.selectedID);

So ideally you have to invoke the function to work it properly

alert(settings.selectedID());

answered Oct 18, 2013 at 6:34

nrsharma

2,5724 gold badges21 silver badges36 bronze badges

Comments

mqshen · Accepted Answer · 2013-10-18 06:35:42Z

0

settings.selectedID is a function

alert(settings.selectedID());

answered Oct 18, 2013 at 6:35

mqshen

5013 silver badges11 bronze badges

Collectives™ on Stack Overflow

jquery plugin pass value by function return

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related