JavaScript RegExp \B Modifier

Complete RegExp Object Reference

Definition and Usage

When the \B modifier is set the regular expression gets a match when it is not at the beginning or end of a word in the string.

Syntax

/\Bregexp/

Example

In the following code we will do a search for "is" that is not at the beginning or end of a word in the string:

var str = "Visit W3Schools";
var patt1 = /\Bis/;

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

Visit W3Schools

Try-It-Yourself Demos

\B
How to use the "\B" modifier to search for something that is not at the beginning or end of a word using a string object.

Complete RegExp Object Reference

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