The Object getOwnPropertyNames() method
Find out all about the JavaScript getOwnPropertyNames() method of the Object object
THE AHA STACK MASTERCLASS
Now open with 50% off launch discount!
Object.getOwnPropertyNames()
returns an array containing all the names of the own properties of the object passed as argument, including non-enumerable properties. It does not consider inherited properties.
Non enumerable properties are not iterated upon. Not listed in for..of loops, for example.
To get only a list of the enumerable properties you can use Object.keys()
instead.
Example:
const dog = {}
dog.breed = 'Siberian Husky'
dog.name = 'Roger'
Object.getOwnPropertyNames(dog) //[ 'breed', 'name' ]
→ Get my JavaScript Beginner's Handbook
I wrote 20 books to help you become a better developer:
- Astro Handbook
- HTML Handbook
- Next.js Pages Router Handbook
- Alpine.js Handbook
- HTMX Handbook
- TypeScript Handbook
- React Handbook
- SQL Handbook
- Git Cheat Sheet
- Laravel Handbook
- Express Handbook
- Swift Handbook
- Go Handbook
- PHP Handbook
- Python Handbook
- Linux Commands Handbook
- C Handbook
- JavaScript Handbook
- CSS Handbook
- Node.js Handbook