Javascript: how to assign setter to object via `=` sign?

Question

Is there way to assign setter/getter to existing object via = sign?

window.somesetter = set(v) {};
window.somesetter = function set(v) {};
window.somesetter = set settername(v) {};

Answer 1

I'd say no. But the answer is "kinda yes" if you use a proxy instead of the object itself.

But this is black magic and by all means is NOT recommended for production :)

const winProxy = new Proxy(window, {
  set(target, name, value) {
    if (typeof value === 'function' && {set: 1, get: 1}[value.name]) {
      const descriptor = Reflect.getOwnPropertyDescriptor(target, name) || {
        enumerable: false, 
        configurable: true,
      }
      
      descriptor[value.name] = value
      
      Reflect.defineProperty(target, name, descriptor)
      
    } else {
      Reflect.set(target, name, value)
    }
  }
})

winProxy.someProp = function set(v) {
  console.log('setter', v);
}

winProxy.someProp = function get() {
  console.log('getter')
}

window.someProp = 1;
window.someProp