Best Practices in Elixir Programming

Chris Keathley shares insight on common practices in Elixir programming that can either enhance or diminish code quality. He advises against using specific data structure functions like `Map.get/2` and `Keyword.get/2`, suggesting the use of Access instead for flexibility. Keathley emphasizes avoiding the piping of results into the next function in favor of explicit `case` or `with` statements, enabling clearer error handling at the point of calling. He critiques piping into `case` statements and hiding higher-order functions within pipeline chains. Furthermore, he argues for stating explicit function requirements, only returning error tuples if actionable by the caller, raising exceptions in case of invalid data, and using `for` comprehensions over `Enum.all?` in test assertions. These practices aim to create more maintainable, composable, and understandable Elixir code.