: ~/fs/Courses/cps506/f2017/Notes/October05 ; iex
Eshell V8.2  (abort with ^G)
Interactive Elixir (1.4.1) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> parent = self()
#PID<0.81.0>
iex(2)> spawn(fn()-> send(parent,42) end)
#PID<0.84.0>
iex(3)> receive do x -> x end
42
iex(4)> receive do x -> x end
  ^C ^C
BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
       (v)ersion (k)ill (D)b-tables (d)istribution

: ~/fs/Courses/cps506/f2017/Notes/October05 ; iex
Eshell V8.2  (abort with ^G)
Interactive Elixir (1.4.1) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> parent = self()
#PID<0.81.0>
iex(2)> spawn(fn()-> receive do x -> send(parent,x+25) end end)
#PID<0.84.0>
iex(3)> receive do after 10 -> 0 end
0
iex(4)> receive do after 5000 -> 0 end
0
iex(5)> child = spawn(fn()-> receive do x -> send(parent,x+25) end end)
#PID<0.90.0>
iex(6)> send(child,17)
17
iex(7)> receive do x -> x end
42
iex(8)> send(child,17)
17
iex(9)> child = spawn(fn()-> receive do {pid,x} -> send(pid,x+25) end end)
#PID<0.96.0>
iex(10)> send(child,{self(),17})
{#PID<0.81.0>, 17}
iex(11)> receive do x -> x end
42
iex(12)> kwl = [hello: true, other: 42]
[hello: true, other: 42]
iex(13)> kwl[:hello]
true
iex(14)> kwl[:other]
42
iex(15)> kwl2 = Keyword.merge([hello: false, other: 0, something: 17], kwl)
[something: 17, hello: true, other: 42]
iex(16)> map = %{hello: true,other:42}
** (SyntaxError) iex:16: keyword argument must be followed by space after: other:
    
iex(16)> map = %{hello: true,other: 42}
%{hello: true, other: 42}
iex(17)> map[:hello]
true
iex(18)> map2 = map |> Map.add(:abc,5)
** (UndefinedFunctionError) function Map.add/3 is undefined or private
    (elixir) Map.add(%{hello: true, other: 42}, :abc, 5)
iex(18)> map2 = map |> Map.put(:abc,5)
%{abc: 5, hello: true, other: 42}
iex(19)> map2 = map |> Map.put(:abc,5) |> Map.put(:other, 88)
%{abc: 5, hello: true, other: 88}
iex(20)> map
%{hello: true, other: 42}
iex(21)> map2 = map |> Map.put(:abc,5) |> Map.put(46, 88)
%{46 => 88, :abc => 5, :hello => true, :other => 42}
iex(22)> 1..3 |> Enum.map(&IO.inspect(&1))
1
2
3
[1, 2, 3]
iex(23)> 1..3 |> Enum.map(&IO.inspect(&1)) |> Enum.map(&(&1+&1))
1
2
3
[2, 4, 6]
iex(24)> 1..3 |> Enum.map(&IO.inspect(&1)) |> Enum.map(&(&1+&1)) |> Enum.map(&IO.inspect(&1))
1
2
3
2
4
6
[2, 4, 6]
iex(25)> 1..3 |> Stream.map(&IO.inspect(&1)) |> Stream.map(&(&1+&1)) |> Stream.map(&IO.inspect(&1))
#Stream<[enum: 1..3,
 funs: [#Function<47.36862645/1 in Stream.map/2>,
  #Function<47.36862645/1 in Stream.map/2>,
  #Function<47.36862645/1 in Stream.map/2>]]>
iex(26)> 1..3 |> Stream.map(&IO.inspect(&1)) |> Stream.map(&(&1+&1)) |> Stream.map(&IO.inspect(&1)) |>Enum.to_list()
1
2
2
4
3
6
[2, 4, 6]
iex(27)> 1.. |>Stream.take(5)
** (SyntaxError) iex:27: syntax error before: '|>'
    
iex(27)> Stream.cycle(1..5) |>Stream.take(12)
#Stream<[enum: #Function<9.36862645/2 in Stream.cycle/1>,
 funs: [#Function<55.36862645/1 in Stream.take/2>]]>
iex(28)> Stream.cycle(1..5) |>Stream.take(12) |> Enum.to_list()
[1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2]
iex(29)> Stream.cycle(1..5) |>Stream.take(120) |> Enum.to_list()
[1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1,
 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, ...]
iex(30)> Stream.concat(Stream.cycle(1..5)|>Stream.take(12),Stream.cycle(3..6)) |>Stream.take(120) |> Enum.to_list()
[1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1,
 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, ...]
iex(31)> Stream.concat(Stream.cycle(1..5)|>Stream.take(12),Stream.cycle(3..6)) |>Stream.take(120) |> Enum.to_list()
[1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4,
 5, 6, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4, 5, 6, 3, 4, ...]
iex(32)>