How to add css class to an element?

Question

JavaScript

There is a div with already existing css class "list"

<div class="list">
..text..
</div>

You need to add the "vote" class to this div. To make it look like this:

<div class="list vote">
..text..
</div>

Answer 1

native js:

let list = document.querySelector('.list');
list.classList += ' vote';

$(".list").addClass("vote");

Answer 2

const a = document.querySelector('.list');
a.classList += ' vote';