How to fire event using javascript

how to create custom event and fire using javascript

the following code shows how you can fire event using javascript by create event object and use either dispatchEvent or fireEvent function of DOM element to fire event.

function fireClickEvent(obj){
	var event;
	if(document.createEvent){
		event = document.createEvent("HTMLEvents"); // for chrome and firefox
		event.initEvent("click", true, true);
	}else{
		event = document.createEventObject(); // for IE
		event.eventType = 'click';
	}
	if(document.createEvent){
		obj.dispatchEvent(event); // for chrome and firefox
	}else{
		obj.fireEvent("on" + event.eventType, event); // for IE
	}
}
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