Web platform features explorer - Accessor methods

Web platform features explorer

This feature is discouraged. For the rationale, see:

https://tc39.es/ecma262/multipage/additional-ecmascript-features-for-web-browsers.html#sec-additional-ecmascript-features-for-web-browsers

The __defineGetter__() and __defineSetter__() methods of objects bind a function to a property, which is called on setting or reading the property.

Status

Discouraged

MDN documentation

Specifications

ECMAScript® 2026 Language Specification (#sec-object.prototype-legacy-accessor-methods), from TC39 (Ecma International).

Browser support

Chrome 1 Released on 2008-12-11
Chrome Android 18 Released on 2012-06-27
Edge 12 Released on 2015-07-29
Firefox 1 Released on 2004-11-09
Firefox for Android 4 Released on 2011-03-29
Safari 3 Released on 2007-10-26
Safari on iOS 1 Released on 2007-06-29

View as JSON | Edit this feature | Report an issue | Web-features entry: source, dist