es6 add and remove class
let el = document.getElementById('container');
//remove class
el.classList.remove('first');
//remove class
el.classList.add('first');es6 add and remove class
let el = document.getElementById('container');
//remove class
el.classList.remove('first');
//remove class
el.classList.add('first');javascript add class to element
var someElement= document.getElementById("myElement");
someElement.className += " newclass";//add "newclass" to element (space in front is important)Copyright © 2021 Codeinu
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