mutablestate

# app/controllers/concern/authorizable.rb

module Authorizable
  def authorize_admin!
    unless signed_in? && current_user.admin?
      flash_not_authorized
    end
  end
  
  def authorize_editor!

mutablestate

defmodule ElixirBuzz do
  @moduledoc "It implements a fizzbuzz solution with cond"
  
  @doc """
  Returns a range from 1 to the given number in as list substituting a number for a pre-defined string when divisible by 3, 5, or 15 (3 and 5)
  """
  def buzz(number) do
    Enum.map(1..number, fn n ->
      cond do
        rem(n, 15) == 0 -> "ElixirBuzz"

mutablestate

==> comeonin
make: Nothing to be done for `priv/bcrypt_nif.so'.

Compiled lib/comeonin.ex

== Compilation error on file lib/comeonin/bcrypt.ex ==
23:08:33.076 [error] Error in process <0.271.0> with exit value: {{badmatch,{error,{bad_lib,"Library version (2.7) not compatible (with 2.6)."}}},[{'Elixir.Comeonin.Bcrypt',init,0,[{file,"lib/comeonin/bcrypt.ex"},{line,22}]},{code_server,'-handle_on_load/4-fun-0-',1,[{file,"code_serv... 

** (MatchError) no match of right hand side value: {:error, :on_load_failure}
    (stdlib) erl_eval.erl:657: :erl_eval.do_apply/6

mutablestate

defmodule Account do
  defstruct id: nil, balance: 0

  def withdraw(account_id, amount) do
    account_id
    |> find
    |> make_withdrawal(amount)
  end

  defp find(account_id) do

mutablestate

# setup
user = %{name: “Foo”}
new_name = %{name: “bar”}

# without pipe
updated_user = Map.put(user, :name, new_name)
validate_user = validate(updated_user)
# etc…

# with pipe

mutablestate

# setup
user = %{name: “Foo”}
new_name = %{name: “bar”}

# single transformation without pipe
Map.put(user, :name, new_name)

# single transformation with pipe
user |> Map.put(:name, new_name)

mutablestate

defmodule Roman do
  @arabic_roman %{
    1    => "I",
    5    => "V",
    10   => "X",
    50   => "L",
    100  => "C",
    500  => "D",
    1000 => "M"
  }

mutablestate

EXTENSIONS LIST

code --list-extensions

LeCrunchic.mariana-nord
PeterJausovec.vscode-docker
Shan.code-settings-sync
Valentin.beamdasm
WallabyJs.quokka-vscode

mutablestate

imestamp = fn ->
  {_date, {hour, minute, _second}} = :calendar.local_time()

  [hour, minute]
  |> Enum.map(
       &String.pad_leading(Integer.to_string(&1), 2, "0")
     )
  |> Enum.join(":")
end

mutablestate

Keybase proof

I hereby claim:

• I am mutablestate on github.
• I am mutablestate (https://keybase.io/mutablestate) on keybase.
• I have a public key ASB-gZNBAUHrojN0asgBv-y2-Nt_sgT_W2HLHxkLxvlEZAo

To claim this, I am signing this object: