How to add a onclick event to an element using javascript

Question

I have created an element using document.getElementsByClassname, and would like to add a onclick event to this element, so that when someone clicks on this element onclick f

Answer 1

You can use .attr() jquery method for this:

$('.classname').attr("onClick", "javascript:alert('clicked'); return false;"); 

Try this

JavaScript

var element= document.getElementsByClassName('classname');
element[0].onclick = function() { alert('Hello'); };//-- here i used "[0]" to refer first matched element 

Try with javascript