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 an event delegation or DOMNode.matches.

document.addEventListener('click', function(e) {
   if (e.target.className == 'classname') // if (e.target.matches('.classname'))
   {
       //do something
   }
});