The Ruby programming language

 The Ruby programming language is a highly portable general-purpose language that serves many purposes. Ruby is great for building desktop applications, static websites, data processing services, and even automation tools.

It's used for web servers, DevOps, and web scraping and crawling.

Things That You Can Make With Ruby

• Full-stack web development.

• Web scraping & crawling.

• Static website generators.

• Command-line media player (using FFI + libVLC) & other command-line tools.

• Automation, Backup & DevOps tools.

• Servers.

• Parsing, data cleaning & filtering.

• API Clients (like Twitter API or Github API)

In web development, there is only one front-end programming language: Javascript (and things that compile to it, like ClojureScript). So now that you know that, you can deduce that in web development, Ruby is a back-end language.

Ruby is most used for building web applications. However, it is a general-purpose language similar to Python, so it has many other applications like data analysis, prototyping, and proof of concepts. Probably the most obvious implementation of Ruby is Rails web, the development framework built with Ruby.

Key Differences between JavaScript and Ruby

JavaScript is more scalable than Ruby as it is 20 times faster than Ruby in some cases. Ruby is better for high CPU intensive application development, which involves graphics, image processing etc., whereas Node. JS is not suitable for high CPU application development.