Adzz

map_1 = %{first: 1, second: 2}
map_2 = %{first: 3, second: 4}

# These just work! 🤩
Zip.apply(map_1, map_2, Add) #=> %{first: 4, second: 6}
Zip.apply(map_1, map_2, Subtract) #=> %{first: 4, second: 6}

Adzz

// As you might expect
func add(x int, y int) int {
  return x + y
}

// Go functions can return multiple values though, so you
// Can type each of the return values
func swap(x, y string) (string, string) {
  return y, x
}

Adzz

# Third round of feature requests
# Extend your design to support one of the following two features:

# Ability to look up, for all users, how many have a todo item with the same name as one of yours.
# Also, explain how to extend your user interface to display the total number of todo items in the
# list currently being viewed. This feature is simple, but there are some easy ways to get it wrong.

# Ability to go back into the past, and see what a user's todo list looked like at any point in time.
# Explain how this would work for todo lists that already exist.
# =================================================================================================

Adzz

defmodule Shape do
  @callback area(map()) :: integer()
  @callback perimeter(map()) :: integer()
end

defmodule Square do
  defstruct [:side]
  @behaviour Shape

Adzz

# A simple Lisp parser. You could copy paste this into iex (the elixir repl)
# or use a livebook, and you can run the parser like this:
#   
#   Elexer.parse("(+ 1 -2)")

# A more fully featured prject can be found here: https://github.com/Adzz/elexer 

defmodule Elexer do
  @moduledoc """
  A simple lisp parser.

Adzz

#!/bin/bash

RED="\033[31m"
GREEN="\033[32m"
RESET="\033[0m"
MAGENTA="\033[35m"
CYAN="\033[36m"
YELLOW="\033[33m"
BLUE="\033[34m"