JSFiddle - React, Tailwind, and code Playground
by webnotes42
HTML
<script src="http://stevenlevithan.com/regex/colorizer/regex-colorizer.js"></script>
<link rel="stylesheet" href="http://stevenlevithan.com/regex/colorizer/themes/nobg.css">
<body onload='RegexColorizer.colorizeAll()'>
<pre class="regex">. Dot, any character (may or may not match line terminators, read on)
\d A digit: [0-9]
\D A non-digit: [^0-9]
\s A whitespace character: [ \t\n\x0B\f\r]
\S A non-whitespace character: [^\s]
\w A word character: [a-zA-Z_0-9]
\W A non-word character: [^\w]
</pre>
</body>