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The flags property returns a string consisting of the flags of the current regular expression object.

Property attributes of RegExp.prototype.flags
Writable no
Enumerable no
Configurable yes

Description

Flags in the flags property are sorted alphabetically (from left to right, e.g. "gimuy").

Examples

Using flags

/foo/ig.flags;   // "gi"
/bar/myu.flags;  // "muy"

Polyfill

if (RegExp.prototype.flags === undefined) {
  Object.defineProperty(RegExp.prototype, 'flags', {
    configurable: true,
    get: function() {
      return this.toString().match(/[gimuy]*$/)[0];
    }
  });
}

Specifications

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'RegExp.prototype.flags' in that specification.
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'RegExp.prototype.flags' in that specification.
Draft  

Browser compatibility

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support YesEdge Full support YesFirefox Full support 37IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 37Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support 6.0.0

Legend

Full support  
Full support
No support  
No support

See also

Autorzy i etykiety dokumentu

Ostatnia aktualizacja: wbamberg,