JSFiddle - React, Tailwind, and code Playground
by petroveg
HTML
<div id="u">
<input type="hidden" value="5">
<input type="hidden" value="7">
<input type="submit" value="1a">
<span></span>
<input type="submit" value="2a">
<input type="submit" value="3a">
</div>
JavaScript
$("input[type='submit']").click(function(){
alert($(this).index());
});