This is continuation of series. Read previous part.
Frequently in jQuery, we need to add class to a selected DOM element using below syntax// $('#id-of-DOM-element').addClass('class-name-to-be-added'); //
Well, the vanilla JavaScript equivalent is simple and straight forward like below
// document.getElementById('id-of-DOM-element').classList.add('class-name-to-be-added'); document.getElementById('id-of-DOM-element').classList.remove('class-name-to-be-added') //