	JavaScript Programmer's Reference
Prev	Home	Up		Next

RegExp.leftContext (Property/static)

A property of the global RegExp object.

Availability:

JavaScript - 1.2

JScript - 5.5

Internet Explorer - 5.5

Netscape - 4.0

Netscape Enterprise Server - 3.0

Opera - 5.0

JavaScript syntax: - RegExp.leftContext

This property returns the text to the left of the most recent match.

Warnings:

Since this is a class property (a static property), it belongs to the global built-in RegExp object. This means it is shared by all RegExp object instances and therefore is very transient and will be overwritten as soon as the next regular expression is evaluated. If you want to preserve the value, you will need to copy it immediately after your regular expression has been evaluated and before you call another.

See also: RegExp.exec(), RegExp.test(), RegExp["$`"]

ReadOnly.

Prev	Home	Next
RegExp.lastParen	Up	RegExp.multiline
JavaScript Programmer's Reference, Cliff Wootton Wrox Press (www.wrox.com) Join the Wrox JavaScript forum at p2p.wrox.com Please report problems to support@wrox.com © 2001 Wrox Press. All Rights Reserved. Terms and conditions.