React Base Fiddle (JSX)
Starting point for creating JSFiddles with React. This uses React with Addons.
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.js"></script>
<script src="https://npmcdn.com/react@latest/dist/react-with-addons.js"></script>
<script src="https://npmcdn.com/react-dom@latest/dist/react-dom.js"></script>
JavaScript 1.7
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>focusin demo</title>
<style>
span {
display: none;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<p id="fff"><input type="text"> <span>focusin fire</span></p>
<p><input type="password"> <span>focusin fire</span></p>
<script>
$(document).ready(function () {
$("#fff").focus();
});
$( "p" ).focusin(function() {
$( this ).find( "span" ).css( "display", "inline" ).fadeOut( 1000 );
});
</script>
</body>
</html>