To match a Unicode character specified by the hexadecimal number xxx with JavaScript Regular Expression, use the following −
\uxxxx
Example
You can try to run the following code to match the hexadecimal number character xxxx. It matches the hexadecimal number 53 i.e. S −
<html> <head> <title>JavaScript Regular Expression</title> </head> <body> <script> var myStr = "Secure and Responsive!"; var reg = /\u0053/g; var match = myStr.match(reg); document.write(match); </script> </body> </html>