RegExp.prototype.flags

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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

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See also