how to get an array out of a javascript proxy-CodePudding

Hi I was wondering if anyone knew how to get an array out of a proxy's target value in JavaScript. I have something like this :

Proxy :
  [[target]] : Array // the array I need to extract
  [[handler]] : Object 
  [[IsRevoked]] : false

CodePudding user response：

If all you have is a reference to the proxy, there is no way (by default) for you to get the proxy's target. A specific proxy could provide a way (via one of its trap handlers, probably), but there is none by default.

CodePudding user response：

As an addition, you may get a copy of the target by spreading if the handler maps everything accordingly. But you can not get the original [[target]] object.

const proxy = new Proxy([1, 2, 3], {
  get(target, prop, receiver) {
    return target[prop];
  }
});

console.log([...proxy]);