BASELINE NowYouCanUse.com
Widely Available JavaScript
id: proxy-reflect

Proxy and Reflect

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).
Baseline Status: Achieved Widely Available on Mar 20, 2019 (Cross-browser Newly Available since Sep 20, 2016).
Desktop Browser Engine Support
Google Chrome
49
Supported
Mozilla Firefox
18
Supported
Apple Safari
10
Supported
Microsoft Edge
12
Supported
Mobile Browser Engine Support
Chrome Android
49
Firefox Android
18
Safari iOS
10
Specifications and References
Specification ↗ Can I Use (proxy) ↗ Feature XML ↗
MDN Browser Compat Data Keys:
javascript.builtins.Proxy ↗ javascript.builtins.Proxy.Proxy ↗ javascript.builtins.Proxy.handler.apply ↗ javascript.builtins.Proxy.handler.construct ↗ javascript.builtins.Proxy.handler.defineProperty ↗ javascript.builtins.Proxy.handler.deleteProperty ↗ javascript.builtins.Proxy.handler.get ↗ javascript.builtins.Proxy.handler.getOwnPropertyDescriptor ↗ javascript.builtins.Proxy.handler.getPrototypeOf ↗ javascript.builtins.Proxy.handler.has ↗ javascript.builtins.Proxy.handler.isExtensible ↗ javascript.builtins.Proxy.handler.ownKeys ↗ javascript.builtins.Proxy.handler.preventExtensions ↗ javascript.builtins.Proxy.handler.set ↗ javascript.builtins.Proxy.handler.setPrototypeOf ↗ javascript.builtins.Proxy.revocable ↗ javascript.builtins.Reflect ↗ javascript.builtins.Reflect.apply ↗ javascript.builtins.Reflect.construct ↗ javascript.builtins.Reflect.defineProperty ↗ javascript.builtins.Reflect.deleteProperty ↗ javascript.builtins.Reflect.get ↗ javascript.builtins.Reflect.getOwnPropertyDescriptor ↗ javascript.builtins.Reflect.getPrototypeOf ↗ javascript.builtins.Reflect.has ↗ javascript.builtins.Reflect.isExtensible ↗ javascript.builtins.Reflect.ownKeys ↗ javascript.builtins.Reflect.preventExtensions ↗ javascript.builtins.Reflect.set ↗ javascript.builtins.Reflect.setPrototypeOf ↗