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JavaScript RegExp \B Metacharacter

RegExp Object Reference JavaScript RegExp Object

Example

Do a global search for "Schools" NOT at the beginning or end of a word in a string:

var str = "Visit W3Schools";
var patt1 = /\BSchool/g;

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

Visit W3Schools

Try it yourself »


Definition and Usage

The \B metacharacter is used to find a match not at the beginning or end of a word.

If no match is found, it returns null.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The \B metacharacter is supported in all major browsers.


Syntax

new RegExp("\\Bregexp")

or simply:

/\Bregexp/

Syntax with modifiers

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

or simply:

/\Bregexp/g


RegExp Object Reference JavaScript RegExp Object

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