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JavaScript RegExp \xdd Metacharacter

❮ JavaScript RegExp Object

Example

Do a global search for the hexadecimal number 57 (W) in a string:

var str = "Visit W3Schools. Hello World!";
var patt1 = /\x57/g;

The marked text below shows where the expression gets a match:

Visit W3Schools. Hello World!
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Definition and Usage

The \xdd character is used to find the Latin character specified by a hexadecimal number dd.

If no match is found, it returns null.


Browser Support

Expression
\xdd Yes Yes Yes Yes Yes

Syntax

new RegExp("\\xdd")

or simply:

/\xdd/

Syntax with modifiers

new RegExp("\\xdd","g")

or simply:

/\xdd/g

❮ JavaScript RegExp Object