find class in javascript code example

Example 1: javascript get element by class

var elementsArray = document.getElementsByClassName("someclassname");

Example 2: js check for class in classList

element.classList.contains(className);

Example 3: javascript find class in div

const div = document.querySelector('div');
div.classList.contains('error'); // falseCode language: JavaScript (javascript)

Example 4: find class

$( "li.item-ii" ).find( "li" ).css( "background-color", "red" );