Elixir: struct default value from function -

can default value variables of struct defined function instead of raw value?

a default value struct field expression evaluated @ time of struct definition.

proof:

# struct.exs defmodule m   defstruct [a: io.gets("> ")] end  # ...  $ iex struct.exs erlang/otp 17 [erts-6.0] ...  > hello interactive elixir (0.13.3-dev) - ... iex(1)> %m{} %m{a: "hello\n"} 

you can define function create struct , set of fields:

# struct.exs defmodule m   defstruct [a: nil]    def new(val)     %m{a: val}   end end  # ...  m.new(123) #=> %m{a: 123}