Why do you love working with your programming language?

I've recently started learning Elixir, and I love the fact that they include the arity with the method name. For example, in Elixir you would say first/1 where first is the method and 1 is the number of arguments. It's a small thing, but it's so useful when reading through documentation.

How about you? What sparks joy with the programming language you work with?