who uses elixir code example

Example 1: elixir function arity

inspect :erlang.fun_info(fn -> :ok end)[:arity] 
inspect :erlang.fun_info(fn a,b-> a+b end)[:arity] 
inspect fn a,b-> a+b end |> is_function 
inspect fn a,b-> a+b end |> is_function(1)

Example 2: elixir version 1.1

kiex list known
Getting the available releases from https://github.com/elixir-lang/elixir/releases

  Known Elixir releases:
     1.2.1
     1.2.0
     1.2.0-rc.1
     1.2.0-rc.0
     1.1.1
     1.1.0
     1.1.0-rc.0
     0.9.3
     0.9.2
     0.9.1
     0.9.0
     0.8.3
     0.8.2
     0.8.1
     0.8.0
     0.7.2
     1.0.5
     1.0.4
     1.0.3
     1.0.2
     1.0.1
     1.0.0
     1.0.0-rc2
     1.0.0-rc1
     0.15.1
     0.15.0
     0.14.3
     0.14.2
     0.14.1
     0.14.0