JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="UsingPlainJavaScript" onkeyup="captureKeys()"/>
  <input type="text" id="UsingJQuery"/>

JavaScript

captureKeys = function(event)
    {
    alert("foo");
    }

$('#UsingJQuery').bind('keyup', function(){alert('bar');});