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RegExp.prototype.flags

The flags accessor property of RegExp instances returns the flags of this regular expression.

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Description

RegExp.prototype.flags has a string as its value. Flags in the flags property are sorted alphabetically (from left to right, e.g. "dgimsuvy"). It actually invokes the other flag accessors (hasIndices, global, etc.) one-by-one and concatenates the results.

All built-in functions read the flags property instead of reading individual flag accessors.

The set accessor of flags is undefined. You cannot change this property directly.

Examples

Using flags

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

Specifications

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android Deno Node.js
flags 49 79 37 39 9 49 37 41 9 5.0 49 1.0 6.0.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags