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. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes | Yes | 37 | No | Yes | Yes |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | 37 | No | Yes | Yes |