Object.defineProperty()

Object.defineProperty(obj, prop, descriptor);
 
 
const object1 = {};
 
Object.defineProperty(object1, 'property1', {
  value: 42,
  writable: false
});
 
object1.property1 = 77;
// throws an error in strict mode
 
console.log(object1.property1);
// expected output: 42

 

• 객체의 특정 속성의 동작을 재정의하는 API
• Object.defineProperty()