JSFiddle - React, Tailwind, and code Playground

by russcam

HTML

<input type="checkbox" value="1" />
<input class="a" type="checkbox" value="1" />
<input class="a"  type="checkbox" value="1" />
<input class="a"  type="checkbox" value="1" />
<input type="checkbox" value="1" />
<input type="checkbox" value="1" />
<span id="comment"></span>

JavaScript

$('#comment').text('Number of checkboxes with class "a" is ' + $('input:checkbox.a').length);