Functional Programming: A PragPub Anthology

Concurrency Is the Core of Elixir

The functional aspects of Elixir are the most obvious external features. And they are what drew me to the language. But, after a while, you realize that they are really there to support the inherent concurrency in the environment.

And, for me, that’s been both the most difficult and the most rewarding aspect of adopting Elixir. Now, when I write code, I try to think of a decomposition not into objects, but rather into actors, or services. And given that Elixir can run literally millions of processes on even a modest laptop, these actors can be very fine-grained.

It’s an exciting time to be writing code, and Elixir is a gratifying language to use to write that code.

In Chapter 21, ​A Testing Framework for ...