Many developers who learn Elixir come from a background in Ruby. This is hardly surprising: Elixir’s creator, José Valim, was formerly a prominent Ruby developer, and Elixir has been attracting Rubyists since the very beginning!

But while Elixir’s syntax looks like Ruby at a glance, you’ll quickly realise that these similarities are skin-deep. The two languages are very different in their underlying designs, and Elixir often requires you to structure your code in a way that looks nothing like the equivalent Ruby. Certain aspects of Elixir will feel very unfamiliar to a Rubyist, and will take some getting used to.

This series will give a brief introduction to Elixir for developers who already know Ruby. But before we get into the details of Elixir’s syntax, it’s worth reviewing some of the higher-level differences between the two languages. In particular, here are the three most important differences between Elixir and Ruby:

https://phoenixonrails.com/blog/elixir-for-ruby-developers-the-three-most-important-differences