I have this code in js bin:   var validator = {   set (target, key, value) {     console.log(target);     console.log(key);     console.log(value);     if(isObject(target[key])){      }     return true   } }   var person = {       firstName: "alf...
I have the following class that is utilizing a Proxy for getting properties and methods:  class User extends Model {      static table = 'users';     _attributes = {         id: 1,         firstName: 'Testing',         lastName: '...
Imagine a simple recursive function, which we are trying to wrap in order to instrument input and output.    // A simple recursive function. const count = n => n && 1 + count(n-1);  // Wrap a function in a proxy to instrument input and out...
I want to use an ES6 proxy to trap the following common code:  for (let key in trapped) {     if (!Object.prototype.hasOwnProperty.call(obj, key)) continue;     let value = trapped[key];     //various code }   But after reviewing the proxy documentat...
ECMAScript 6 introduces proxy object, which may be created as revocable.  How can I detect if a proxy has been revoked?...
I want user to only set specific properties to an object but as the same time that object should be constructed from custom class.  For example  var row = new Row({   name : 'John Doe',   email : '[email protected]' }, Schema);   ro...
I have a simple ES6 class, like so:  class Ring extends Array {     insert (item, index) {         this.splice(index, 0, item);         return this;     } }   I want to make it so that the indexing for Ring objects wraps, so that new Ring(1, 2, 3)[3]...
Is there any significant difference between Reflect and Proxy?  From what is documented, it seems that they have pretty much the same capabilities, apart from:   Reflect being capable of specifying only one trap at the time. Proxy being revocable. Pr...
I am trying to call .toString() on a function proxy.  Simply creating a function proxy and calling toString causes "TypeError: Function.prototype.toString is not generic", setting the toString to return the source of the original causes "...
First of all, I want to clarify, I know that with is deprecated, and using it is generally a bad practice.  However, my question is about a special case: using a special Proxy object as the parameter of with.    Background  I'm working on a proje...

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