Opal - an application that compiles Ruby source code to JavaScript

Opal is a technology that allows Ruby developers to write code that runs in browsers as JavaScript. The main idea behind Opal is to enable Ruby programmers to utilize a language they are already familiar with for frontend application development without the need to learn JavaScript. Opal translates Ruby code into JavaScript, allowing full integration with existing JS libraries and frameworks like Rails. This makes Opal a very useful tool, especially for those who have experience in Ruby and wish to avoid the learning curve of a new programming language. The main documentation of Opal also contains code examples, making it more approachable for newcomers who want to start using this tool. In summary, Opal provides an excellent solution for Ruby developers looking to transition their skills into frontend programming while using a familiar and intuitive language.