check if a class exists javascript
const element = document.querySelector("#box");
element.classList.contains("active");check if a class exists javascript
const element = document.querySelector("#box");
element.classList.contains("active");class exists javascript
const div = document.querySelector('.info');
div.classList.contains('secondary'); // trueCode language: JavaScript (javascript)class exists javascript
<div class="secondary info">Item</div>Code language: HTML, XML (xml)Copyright © 2021 Codeinu
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