What are the applications of the Ruby language?

The application fields of Ruby language include but are not limited to the following areas:

1. Web development: Ruby on Rails is a web application framework developed using the Ruby language, widely used to build efficient and scalable web applications.
2. Front-end development: Ruby language can be utilized for front-end development by utilizing some front-end frameworks and libraries such as Sinatra and Hanami.
3. Data analysis and scientific computing in Ruby language can be achieved using libraries like Numo, enabling the handling of large-scale data and implementation of machine learning algorithms.
4. Automated scripts and tasks: Ruby language has a concise and readable syntax, making it suitable for writing automated scripts and tasks such as automated testing scripts, data processing scripts, and so on.
5. Game development: Ruby language can be used to develop games using some game engines and libraries, such as Gosu and Rubygame.
6. System management and deployment: Ruby language can utilize tools like Capistrano and Chef for simplifying configuration and automating tasks in system management and deployment.
7. Ruby language can be used for developing desktop applications with GUI frameworks and libraries such as Shoes and GTK+.

In general, Ruby language is widely used in areas such as web development, scripting, data analysis, and scientific computing.