The ‘Scenic’ GUI library written in Elixir handles all these problems very elegantly, and Elixir is completely functional (no traditional OO, classes or objects

The ‘Scenic’ GUI library written in Elixir handles all these problems very elegantly, and Elixir is completely functional (no traditional OO, classes or objects)* and immutable. *of course Elixir/erlang is actually OO done right (actor model) but that’s another story