What is JavaScript?

JavaScript is a high-level, interpreted programming language that is primarily used for web development. Key characteristics:

1. Dynamic typing
2. Prototype-based object-oriented programming
3. First-class functions
4. Event-driven programming
5. Client-side and server-side execution
6. Interpreted language (no compilation needed)
7. Case-sensitive
8. Supports functional, object-oriented, and procedural programming paradigms