What are the main features of the Ruby language?

The main features of the Ruby language include the following:

1. Simple and elegant: Ruby’s syntax is concise and elegant, making it easy to read and write, with clear code style.
2. Dynamic typing: Ruby is a dynamic language where variable types are automatically inferred at runtime and can be changed at any time.
3. Object-oriented: Ruby is a purely object-oriented language where everything is treated as an object, with support for features such as classes, objects, inheritance, and polymorphism.
4. Powerful metaprogramming ability: Ruby offers strong metaprogramming ability, allowing classes’ behavior to be dynamically modified and extended at runtime, making metaprogramming techniques very convenient.
5. Ruby comes with a built-in library of rich functions, making it easy to perform common tasks such as string processing, file operations, and network communication.
6. Automatic memory management: Ruby has a garbage collection mechanism that automatically handles memory management, so developers don’t need to worry about allocating and releasing memory.
7. Powerful regex support: Ruby comes with a robust regex engine that can handle complex string matching and replacement operations.
8. Portability: Ruby can run on various operating systems such as Windows, Linux, macOS, and others.
9. The open-source community is lively: Ruby has an active open-source community with a wealth of libraries and frameworks available for developers to quickly build applications.
10. Rails Framework: Ruby on Rails (abbreviated as Rails) is a significant framework for Ruby, allowing developers to quickly build efficient web applications and engage in agile development.