Thanks Allen and Jason! This completely cleared it all up for me! On 16 March 2015 at 18:15, Jason Orendorff <[email protected]> wrote:
> On Mon, Mar 16, 2015 at 11:53 AM, Allen Wirfs-Brock > <[email protected]> wrote: > > In ES6, the primary role of the Reflect object is to provide direct > access > > to an object's essential internal methods: > > > http://people.mozilla.org/~jorendorff/es6-draft.html#sec-object-internal-methods-and-internal-slots > > To further elaborate on this: one way this is useful is that the 14 > essential internal methods are exactly the operations you can trap > with a custom Proxy. It's useful, when writing a Proxy, to use the > Reflect methods as fallbacks: > > var alertingProxy = new Proxy(obj, { > // Proxy: hook into property assignment > set(t, key, value, receiver) { > alert(`setting the ${key} property of ${t} to ${value}`); > > // Reflect: do normal property assignment > return Reflect.set(t, key, value, receiver); > } > }); > > -j >
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