elbrujohalcon

-module joe.

-export [test/0, perms/1].

test() ->
    [[]] = joe:perms(""),
    ["a"] = joe:perms("a"),
    ["ab", "ba"] = joe:perms("ab"),
    ["ba", "ab"] = joe:perms("ba"),
    ["123","132","213","231","312","321"] = joe:perms("123"),

elbrujohalcon

-module joe.

-export [test/0, perms/1].

test() ->
    [[]] = joe:perms(""),
    ["a"] = joe:perms("a"),
    ["ab", "ba"] = joe:perms("ab"),
    ["ba", "ab"] = joe:perms("ba"),
    ["123","132","213","231","312","321"] = joe:perms("123"),

elbrujohalcon

-module joe.

-export [test/0].

test() ->
    [[]] = joe:perms(""),
    ["a"] = joe:perms("a"),
    ["ab", "ba"] = joe:perms("ab"),
    ["ba", "ab"] = joe:perms("ba"),
    ["123","132","213","231","312","321"] = joe:perms("123"),

elbrujohalcon

defmodule MyODT do
  @opaque t() :: %{required(:f1) => boolean, required(:f2) => atom}

  @spec new(boolean, atom) :: t
  def new(f1, f2), do: %{f1: f1, f2: f2}

  @spec f1(t) :: boolean
  def f1(%{f1: f1}), do: f1

  def f2(%{f2: f2}), do: f2

elbrujohalcon

This is just a file.

elbrujohalcon

1> A = [ [1,2,3],[4,5,6]].
[[1,2,3],[4,5,6]]
2> B = [ [a,b,c],[d,e,f]].
[[a,b,c],[d,e,f]]
3> [lists:zip(X, Y)|| X <- A, Y <- B].
[[{1,a},{2,b},{3,c}],
 [{1,d},{2,e},{3,f}],
 [{4,a},{5,b},{6,c}],
 [{4,d},{5,e},{6,f}]]

elbrujohalcon

-module crazy_shorties.
-author(joan_manuel).

-export [new/0, teach/1, direct/1].

new() ->
  Child = spawn_link(fun live/0),
  timer:send_interval(1000, Child, tick),
  Child.

elbrujohalcon

-module(in).

-author(john).
-author(paul).
-author(george).
-author(ringo).

-export([my_life/1]).

my_life(NewPlaces) ->

elbrujohalcon

-module(plusplus).

-export([first/0, second/0, third/0]).

-spec first() -> 'something'.
first() -> [] ++ something.

-spec second() -> none().
second() -> something ++ [].

elbrujohalcon

-module(plusplus).

-export([first/0, second/0]).

first() -> [] ++ something.

second() -> something ++ [].