The static method Reflect.getOwnPropertyDescriptor serves the purpose of obtaining the descriptor for a specific property of an object. This functionality is identical to that of the Object.getOwnPropertyDescriptor method.
Syntax:
Example
Reflect.getOwnPropertyDescriptor (obj, Key)
Parameters:
Obj : This refers to the object that serves as the target for searching for the property.
Key: This refers to the identifier of the property for which an individual property descriptor is to be obtained.
Return value:
If the specified property is present in the target object, it will return the corresponding property descriptor object. If the property does not exist, it will return undefined.
Exceptions:
A TypeError, if the target is not an Object.
Browser Support:
| Chrome | 49 |
|---|---|
Edge |
12 |
| Firefox | 42 |
| Opera | 36 |
Example 1
Example
const object1 = {
property1: 22 };
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property2'));
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property1').writable);
Output:
Output
undefined
true
Example 2
Example
const object1 = {
property1: 234 };
const hh = {p:4};
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property1').value);
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property2'));
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property1').writable);
console.log (
Reflect.getOwnPropertyDescriptor ( hh , "yyy" ) === undefined
);
Output:
Output
234
Undefined
true
true
Example 3
Example
const object1 = {
property1: 42
};
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property1').value);
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property2'));
console.log(Reflect.getOwnPropertyDescriptor(object1, 'property1').enumerable);
Output:
Output
42
undefined
true
