Accessor methods
This feature is discouraged — TC39 included accessor methods in Annex B of the ECMAScript specification, which covers JavaScript features with "one or more undesirable characteristics and in the absence of legacy usage would be removed."
For more information, 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
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
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