JSFiddle - React, Tailwind, and code Playground
by Nick Craver
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<form class="formyform">
<input type="checkbox" />
<input type="checkbox" checked />
<input type="checkbox" style="display: none;" />
<input type="checkbox" style="display: none;" checked />
</form>
JavaScript
alert("Found: " + $(".formyform input:checked:visible").length);