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The RegExp.prototype
property represents the prototype object for the RegExp
constructor.
Property attributes of RegExp.prototype |
|
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Description
See RegExp
for a description of RegExp
instances. RegExp
instances inherit from RegExp.prototype
. Modifications to the prototype object are propagated to all RegExp
instances.
Properties
See also deprecated RegExp
properties.
Note that several of the RegExp
properties have both long and short (Perl-like) names. Both names always refer to the same value. Perl is the programming language from which JavaScript modeled its regular expressions.
RegExp.prototype.constructor
- Specifies the function that creates an object's prototype.
RegExp.prototype.flags
- A string that contains the flags of the
RegExp
object. RegExp.prototype.global
- Whether to test the regular expression against all possible matches in a string, or only against the first.
RegExp.prototype.ignoreCase
- Whether to ignore case while attempting a match in a string.
RegExp.prototype.multiline
- Whether or not to search in strings across multiple lines.
RegExp.prototype.source
- The text of the pattern.
RegExp.prototype.sticky
- Whether or not the search is sticky.
RegExp.prototype.unicode
- Whether or not Unicode features are enabled.
Methods
RegExp.prototype.compile()
- (Re-)compiles a regular expression during execution of a script.
RegExp.prototype.exec()
- Executes a search for a match in its string parameter.
RegExp.prototype.test()
- Tests for a match in its string parameter.
RegExp.prototype[@@match]()
- Performs match to given string and returns match result.
RegExp.prototype[@@replace]()
- Replaces matches in given string with new substring.
RegExp.prototype[@@search]()
- Searches the match in given string and returns the index the pattern found in the string.
RegExp.prototype[@@split]()
- Splits given string into an array by separating the string into substring.
RegExp.prototype.toSource()
- Returns an object literal representing the specified object; you can use this value to create a new object. Overrides the
Object.prototype.toSource()
method. RegExp.prototype.toString()
- Returns a string representing the specified object. Overrides the
Object.prototype.toString()
method.
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 3rd Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.1. |
ECMAScript 5.1 (ECMA-262) The definition of 'RegExp' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'RegExp.prototype' in that specification. |
Standard | Added flags , sticky and unicode properties. |
ECMAScript 2017 Draft (ECMA-262) The definition of 'RegExp.prototype' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
See also
- Regular Expressions chapter in the JavaScript Guide
RegExp
Function.prototype