Why is Xcode needed for running Ruby on Rails?

Question

When we set up the appropriate environment for running Ruby on Rails, we need to install x-code. I also did it but don't know how it works and why we need to install it.

Could you give me some answers?

Answer 1

There are some modules for ruby, that are written for performance reasons in a mixture of C++ and Ruby code.

To install them, they need to be compiled first - and for that, you'll need the system compiler.