I want to know more about WHEN statement in elixir

when is to introduce a guard in a pattern match. It “refines” the values that have been bound through matching and can do shallow type or value checking: n = 5 case get_user_input_as_number do x when is_integer(x) and x < n -> IO.puts("lesser") x when is_integer(x) and x > n -> IO.puts("bigger…

The section of the documentation where you can read more about when and guards, is the “ Patterns and Guards ” section. There are many examples there that are probably more clear than what we can come up with on the fly :slight_smile:.

Yeah, it was too early for me… Drink (coffee) before you write…

Elixir Programming Language Forum

Please help me with example use case for WHEN in elixir

Questions & Help Questions

NobbZ December 22, 2020, 12:32pm 3

You are describing with, not when.