Proxy and Reflect
Widely available
The Proxy and Reflect JavaScript built-ins intercept and define custom behavior for fundamental language operations (such as property lookup, assignment, enumeration, or function invocation).
To learn more, see
Proxy,
Reflect at MDN.
Compatibility (view on caniuse.com)
- Chrome 49 Released on 2016-03-02
- Chrome Android 49 Released on 2016-03-09
- Edge 12 Released on 2015-07-29
- Firefox 18 Released on 2013-01-08
- Firefox for Android 18 Released on 2013-01-08
- Safari 10 Released on 2016-09-20
- Safari on iOS 10 Released on 2016-09-13
Specifications
- ECMAScript Language Specification (#sec-reflection), from TC39 (Ecma International).