JS: Object.defineProperty 👎

Object.defineProperty

Object.defineProperty(obj, key, descriptor)

• Create or modify Property Attributes of a single property.
• Return the modified object.

descriptor is Property Descriptor.

🟢 tip: better is Reflect.defineProperty.

// create a property that's not enumerable

const xx = {};

Object.defineProperty(xx, "pp", {
 value: 3,
 writable: true,
 enumerable: false,
 configurable: true,
});

console.assert(xx.pp === 3);

console.assert(Reflect.getOwnPropertyDescriptor(xx, "pp").enumerable === false);