A gamer is a person who plays interactive games, especially video games, tabletop role-playing games, and skill-based card games, and who plays for usually long periods of time. Some gamers are competitive, meaning that they compete in some games for money. There are many different gamer communities around the world.

Prototype based Object-oriented - JavaScript is an object-oriented programming language. Objects are used to represent the real-world entity in the program. Interpreted Language - JavaScript is an interpreted programming language. It uses just-in-time compilation technique at run-time.