JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" value="val"> Check me.
<div style="clear:both;">
Pick something: <select>
    <option value="1">Option 1
    <option value="2">Option 2
    <option value="3">Option 3
</select>
<div style="clear:both;">
Enter something:
    <div style="clear:both;">
        <textarea style="width:200px; height: 100px;">
        </textarea>

JavaScript

$(document).ready(function() {
    $('input[type=checkbox]').click(function() {
      alert("val="+$(this).val()+",checked="+$(this).attr('checked'));
    });

});