jQuery – event handler for dropdown change

There are multiple ways of handling events in jQuery using callback methods. The callback method can be written inline or it can be written as a separate function and called from the bind call. Here’s what I mean.

$( "#id_dropdown" ).bind("change", function(e) {
		alert ("Dropdown value changed");


$( "#id_dropdown" ).bind("change", handleDropdownChange);
var handleDropdownChange = function() {
	alert ("Dropdown value changed");
	var $dropdown = $( this );

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