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RegExp Object

The RegExp object stores information on regular expression pattern searches.

Properties

$1...$9

The nine most-recently used memorized portions found during pattern matching.

index

The location where the first successful match begins.

input

The string against which a search was performed.

lastIndex

Where the last successful match begins.

lastMatch

The last matched characters.

lastParen

The last parenthesized substring match, if any.

leftContext

The input string up to the most recent match.

multiline

Indicates whether searching continued across line breaks.

rightContext

The input string past the most recent match.

Syntax

RegExp.propertyname

Arguments

propertyname
One of the RegExp object properties.

Remarks

The RegExp object cannot be created directly, but is always available for use. Its properties have undefined as their value until a successful regular expression search has been completed.


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