wstucco

go build -buildmode=c-shared -o hello.so hello.go

# if no error is returned you can check that the shared library is exporting
# the right symbols by executing
# $ nm -gU ./hello.so | grep hello
# 0000000000002050 T __cgoexp_d4a435ec6890_hello_world
# 0000000000001ae0 T _hello_world <--- ALL SYSTEMS ARE GO
                   

wstucco

{:ok, ips} = :inet.getif()

ips 
|> Enum.map(fn {ip, _broadaddr, _mask} -> ip |> Tuple.to_list |> Enum.map_join(".", &to_string/1) end) 
|> Enum.map(fn ip -> {ip, String.jaro_distance(ip, "192.168.99.100")} end)
|> Enum.sort(fn {_, score1}, {_, score2} -> score1 > score2 end)
|> List.first 
|> elem(0)  

wstucco

defmodule Processes do
  @compile :native

  def create_and_forget do
    1..1_000_000
    |> Enum.each(fn x ->
      Task.async(fn -> x + 1 end) |> Task.await
    end)

    IO.puts("Maximum number of threads per process is = 1000000")

wstucco

defmodule A do
  use GenServer
  
  def start do
    GenServer.start_link(__MODULE__, [])
  end
  
  def send_after(pid) do
    1..10 
    |> Enum.each(fn _ -> Process.send_after(pid, :message, 1_000) end)

wstucco

defmodule App do

  def bench do
    :timer.tc(fn -> start() end)
  end

  defp start do
    run()
    wait()
  end

wstucco

defmodule NumberParser do
  import NimbleParsec

  @moduledoc """
  In most European countries decimal separator is the , (comma)
  This is a simple parser for numbers formatted that way
  """

  nat = integer(min: 1)
  sep = string(",")