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JavaScript RegExp \uxxxx Metacharacter

RegExp Object Reference JavaScript RegExp Object

Example

Do a global search for the hexadecimal number 0057 (W) in a string:

var str = "Visit W3Schools. Hello World!";
var patt1 = /\u0057/g;

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

Visit W3Schools. Hello World!

Try it yourself »


Definition and Usage

The \uxxxx character is used to find the Unicode character specified by a hexadecimal number xxxx.

If no match is found, it returns null.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The \uxxxx metacharacter is supported in all major browsers.


Syntax

new RegExp("\\uxxxx")

or simply:

/\uxxxx/

Syntax with modifiers

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

or simply:

/\uxxxx/g


RegExp Object Reference JavaScript RegExp Object

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