document get elemt by class code example

Example 1: javascript get element by class

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

Example 2: get element by class

var elements = document.getElementsByClassName(names); // or:
var elements = rootElement.getElementsByClassName(names);

Example 3: javascript get element by class

var elements = document.querySelector(".class");

Example 4: javascript get element by class

const whiteBoxes = document.getElementsByClassName("box-white")