JavaScript RegExp Tutorial
JavaScript RegExp - Home
JavaScript RegExp - Overview
Brackets
JavaScript RegExp - [...]
JavaScript RegExp - [^...]
JavaScript RegExp - [0-9]
JavaScript RegExp - [a-z]
JavaScript RegExp - [A-Z]
JavaScript RegExp - [a-zA-Z]
Quantifiers
JavaScript RegExp - p+
JavaScript RegExp - p*
JavaScript RegExp - p?
JavaScript RegExp - p{N}
JavaScript RegExp - p{N1,N2}
JavaScript RegExp - p{N,}
JavaScript RegExp - p$
JavaScript RegExp - ^p
Matching Characters
JavaScript RegExp - [^a-zA-Z]
JavaScript RegExp - p.p
JavaScript RegExp - ^.{2}$
JavaScript RegExp - <b>(.*)</b>
JavaScript RegExp - p(hp)*
Literal Characters
JavaScript RegExp - Alphanumeric
JavaScript RegExp - \0
JavaScript RegExp - \t
JavaScript RegExp - \n
JavaScript RegExp - \v
JavaScript RegExp - \f
JavaScript RegExp - \r
JavaScript RegExp - \xnn
JavaScript RegExp - \uxxxx
Meta Characters
JavaScript RegExp - .
JavaScript RegExp - \s
JavaScript RegExp - \S
JavaScript RegExp - \d
JavaScript RegExp - \D
JavaScript RegExp - \w
JavaScript RegExp - \W
JavaScript RegExp - [aeiou]
JavaScript RegExp - [^aeiou]
JavaScript RegExp - (foo|bar|baz)
Modifiers
JavaScript RegExp - i
JavaScript RegExp - g
Properties
JavaScript RegExp - constructor
JavaScript RegExp - global
JavaScript RegExp - ignoreCase
JavaScript RegExp - lastIndex
JavaScript RegExp - multiline
JavaScript RegExp - source
Methods
JavaScript RegExp - exec()
JavaScript RegExp - test()
JavaScript RegExp - toSource()
JavaScript RegExp - toString()
JavaScript RegExp Useful Resources
JavaScript RegExp - Quick Guide
JavaScript RegExp - Useful Resources
JavaScript RegExp - Discussion

JavaScript RegExp - \xnn

Description

\xnn matches the Latin character specified by the hexadecimal number nn; for example, \x0A is the same as \n.

Example

Following example shows usage of RegExp expression.

<html>
   <head>
      <title>JavaScript RegExp</title>
   </head>
   
   <body>
      <script type = "text/javascript">
		 var str = "ab\x0Ac";
         var pattern = /\x0A/g;

         var index = str.search(pattern);
         document.write("Test 1 - returned value : " +  index); 

         str = "abc";
         index = str.search(pattern);
         document.write("<br/>Test 2 - returned value : " +  index); 	 		 
      </script>
   </body>
</html>

Output

Test 1 - returned value : 2
Test 2 - returned value : -1