How to add your own custom functions to jQuery

Recently I wrote a template on how to extend jQuery and how to create your own functions. Since then I came across even smaller code snippet on how to add your own custom functions, in other words how to create plugins for jQuery. So without further ado:

$.fn.myFunction = function() { 
    return $(this).addClass('changed'); 
}

And now, use it like this:

$('.changePlease').myFunction();

And that is all there is :)

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