Part Eight | Functional Programming Through Elixir: Guards and Pattern Matching in Function Heads
Taking Pattern Matching Further
In Part Four, we introduced pattern matching and saw basic guards in function clauses. We wrote things like when age < 13 and moved on. This post picks up where that left off.
Guards and multi-clause functions are how you structure decision-making in Elixir. Where OOP reaches for if/else chains, switch statements, or the strategy pattern, Elixir uses function heads with guards. Once you’re comfortable with this approach, you’ll find that most conditional logic just becomes more functions.