Understanding Function Composition in Elixir

This article provides an in-depth look at function composition in Elixir, comparing it to building with LEGO blocks where simple, small functions are combined to create more complex functionalities. It elaborates on how function composition leads to easier testing, reusability, and clarity in the code. The article covers concepts such as anonymous functions, higher-order functions, partial application, and currying. Additionally, it discusses practical applications like data processing pipelines and middleware composition, while emphasizing best practices for writing composable functions in Elixir. The author also highlights the significance of using consistent return types and clear documentation for functions in order to facilitate composition.