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JavaScript Reference

JavaScript

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Other Objects

CSSStyleDeclaration

JavaScript RegExp \uxxxx Metacharacter

< JavaScript RegExp Object

Example

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

var str = "Visit w3ii. 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

Expression
\uxxxx	Yes	Yes	Yes	Yes	Yes

Syntax

new RegExp("\\uxxxx")

or simply:

/\uxxxx/

Syntax with modifiers

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

or simply:

/\uxxxx/g

< JavaScript RegExp Object