Reflect.getOwnPropertyDescriptor()

const object1 = {
  property1: 42,
};

console.log(Reflect.getOwnPropertyDescriptor(object1, "property1").value);
// Expected output: 42

console.log(Reflect.getOwnPropertyDescriptor(object1, "property2"));
// Expected output: undefined

console.log(Reflect.getOwnPropertyDescriptor(object1, "property1").writable);
// Expected output: true

Reflect.getOwnPropertyDescriptor(target, propertyKey);

Reflect.getOwnPropertyDescriptor({ x: "hello" }, "x");
// {value: "hello", writable: true, enumerable: true, configurable: true}

Reflect.getOwnPropertyDescriptor({ x: "hello" }, "y");
// undefined

Reflect.getOwnPropertyDescriptor([], "length");
// {value: 0, writable: true, enumerable: false, configurable: false}

Reflect.getOwnPropertyDescriptor("foo", 0);
// TypeError: "foo" is not non-null object

Object.getOwnPropertyDescriptor("foo", 0);
// { value: "f", writable: false, enumerable: true, configurable: false }