proxy objects reminds me of lua's metatables

proxy.js

const user = {
    firstName: 'John',
    lastName: 'Doe',
    email: 'john.doe@example.com',
}

const handler = {
    get(target, property) {
        return target[property] || (property + "-not-found");
    }
}

const proxyUser = new Proxy(user, handler);
proxyUser.email