Observer Design Pattern in Jquery

We can use observer design pattern (publisher - subscriber model) in jquery by triggering and attaching events.

Attach a trigger event for publisher
$('div').on('click', function(e) {
    $(this).trigger('MyEvent',e,parameterValue);
});


Attach subscriber methods
$(document).on('MyEvent', function(e,parameterValue) {
    //Do your stuffs with parameterValues..
});