Question

I have an existing jQuery plugin, now I want to extend it. Consider the below mentioned plugin:

$.fn.x = function(option) {
        var defaults = {
            a: 1,
            b: 2
        };

        option = $.extend(def, option);
        function abc() {
            //do something
        }
        function def() {
            //do something
        }
    };

Now the above one is the plugin I got from somewhere. I need to have custom behavior for abc method, say

function abc() {
                //do something else
            }

I don’t want to change the existing plugin, Can you tell me how could I achieve the same by extending the same or by making my own custom plugin ?

Answer 1

You will not be able to replace/override the method in this particular situation because it is declared as a local variable. The best solution would be to write your own plugin, or extend this one with an option for abc function.
Something like this:

function abc() {
    if(!!option.abc){
         return option.abc.call(this);    
    }
    alert('old abc');
}