Pure JavaScript

RegExp()

JavaScript 1.2+, Jscript 3.0+ Nav4+, NES3+, IE4+ Syntax

var variable = new RegExp(pattern,
							flags)

Description

The RegExp() object represents a regular expression that is used for pattern matching. The creation of the object takes pattern and flags parameters. The pattern is a valid regular expression. The flags are either or both g (global) and i (ignore case). Table 6.32 displays the properties and methods of the RegExp() object.

Table 6.32. Properties and Methods of the RegExp() Object

Property/Method	Description
RegExp.$*	Represents multiline
RegExp.$&	Represents lastmatch
RegExp.$_	Represents input
RegExp.$`	Represents leftContext
RegExp.$'	Represents rightContext
RegExp.$+	Represents lastParen
RegExp.$1,$2,…$9 ...