What is Node JS in simple terms?

Related questions

1. Does node js need a Web server?
2. Does react JS need node JS?
3. Is node js a language?
4. What is Node JS API?
5. What is node JS and why use it?
6. What is Express node?
7. How install Node JS Express?
8. What is the difference between node JS and express?
9. Which is better node js or react JS?
10. Which server is used in Node JS?

Tags

1. #feeds
2. #connection
3. #useful
4. #javascript
5. #applications
6. #server
7. #persistent
8. #require
9. #browser
10. #developing
11. #development
12. #platform
13. #often
14. #notifications
15. #source
16. #executing