js get all elements with class code example

Example 1: javascript get element by class

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

Example 2: javascript get all elements with class

const allElementContainGrepperClassName = document.querySelectorAll('.grepper');
// => return array of all elements 

const firstElementContainGrepperClassName = document.querySelector('.grepper');

Example 3: javascript get element by class

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

Example 4: javascript get all classes

var allHiddenElements = document.getElementsByClassName("hidden");

Example 5: js get class property

let element = document.querySelector('.preset');
let style = getComputedStyle(element);
let bg = style.backgroundColor;

Example 6: javascript get element by class

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