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

Specification
ECMAScript Language Specification
# sec-get-regexp.prototype.flags

Browser compatibility

desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
Deno
Node.js
flags

See also