How to get the target of a JavaScript Proxy?

Question

function createProxy() {
    const myArray = [Math.random(), Math.random()];
    return new Proxy(myArray, {});
}

const myProxy = createProxy();

H

Answer 1

The other answers gave some good solutions. Here is @Yuci's answer distilled down for classes, in which case, it's as simple as defining an instance variable of some special name. The Proxy get function returns it, and so does the underlying target.

class Foo {
    constructor() {
        this.__target__ = this;
        return new Proxy(this, {
            get: function (target, name) {
                if (name in target) return target[name];
                // your code here
            }
        });
    }
}

let foo = new Foo();
let target = foo.__target__;
console.log('proxied Foo', foo);
console.log('recovered target', target, target.__target__.__target__);