Question

I have created a plugin that creates a check box image based based on a hidden field. I would like to override the is() function… is that possible? I’m basically using an image to mock a checkbox.

Html:

<input type="hidden" value="1" id="box" />

Create the plugin for the hidden field:

$('#box').myCheckbox();

I would like to be able to do the following:

$('#box').is(':checked');

Is it possible to override the is() function in my plugin?

Answer 1

yep 🙂

           (function() {
              var proxied = jQuery.fn.is;
              jQuery.fn.is= function() {
                //do your things here
                return proxied.apply(this, arguments);//call the default is here
              };
            })();

btw :checked is already supported by default

so if u had

$(‘#checkbox’).is(‘:checked’);// return true/false depending if the checkbox is ticked or not don’t over complicate things as you will pull ur hair out later on when u forgot that u made this overriding changes 🙂