JSFiddle - React, Tailwind, and code Playground
by Tomek
HTML
<input class="works" />
<input class="works" />
<input class="works" value="3" />
<br/>
<input class="fails" />
<br/>
<button value="check" />
<pre id="out"></pre>
JavaScript
$('input').val("5");
$('button').click(function () {
$('#out').html(
"$('.works').length : " + $('.works').length + "\n" +
"$('.works[value=\"\"]').length : " + $('.works[value="5"]').length + "\n" +
"$('.works').filter('[value=\"\"]').length : " + $('.works').filter('[value="5"]').length + "\n" +
"\n" +
"$('.fails').length : " + $('.fails').length + "\n" +
"$('.fails[value=\"\"]').length : " + $('.fails[value=""]').length + "\n" +
"$('.fails').filter('[value=\"\"]').length : " + $('.fails').filter('[value=""]').length + "\n" +
"");
});