To find a hexadecimal number character with JavaScript Regular Expression, use the following. Add the hexadecimal number here −
\xdd
You can try running the following code to find hex characters. It searches for the hexadecimal number 53, which is S −
<html>
<head>
<title>JavaScript Regular Expression</title>
</head>
<body>
<script>
var myStr = "Secure and Responsive!";
var reg = /\x53/g;
var match = myStr.match(reg);
document.write(match);
</script>
</body>
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