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Getting the object properties

Getting the property names of an object: getOwnPropertyNames()

The getOwnPropertyNames() method is a built-in JavaScript function that returns an array of all non-inherited, enumerable properties of an object. These properties are the objectโ€™s own properties, which have been defined directly on the object, and are not inherited from its prototype chain.

The getOwnPropertyNames() method is useful when you need to obtain a list of an objectโ€™s own properties for various purposes, such as serialization, copying, or enumeration.


Hereโ€™s an example demonstrating the use of getOwnPropertyNames() to retrieve all the own property names:

const person = {
firstName: 'Sarah',
lastName: 'Connor',
age: 25,
// Addition of an own property = 'USA'
// Retrieving own property names
const ownPropertyNames = Object.getOwnPropertyNames(person)