getPropertyDescriptors

Object.getOwnPropertyDescriptors is a static method of the Object class in JavaScript. It is used to retrieve all own property descriptors for a given object. Property descriptors are objects that describe the characteristics of a property, such as its value, writability, enumerability, and configurability.

When you call Object.getOwnPropertyDescriptors(obj), it returns an object where the keys are the names of the own properties of obj, and the values are the corresponding property descriptors. An own property is a property directly defined on an object, not inherited from its prototype chain.

Each property descriptor object returned by getOwnPropertyDescriptors contains one or more of the following attributes:

Value: The value of the property.

Writable: A boolean indicating whether the property's value can be changed.

Enumerable: A boolean indicating whether the property will be iterated over in for...in loops or Object.keys().

Configurable: A boolean indicating whether the property can be deleted or its attributes changed.

Get: A function to be called to retrieve the property's value.

Set: A function to be called to set the property's value.

This method is particularly useful for tasks like creating exact copies of objects, including non-enumerable properties, or for analyzing the precise nature of properties on an object. It complements Object.getOwnPropertyNames and Object.getOwnPropertySymbols by providing detailed information about each property.