CODEWITHSUNDEEP
elixir
Peske
Peske

Reputation: 19

Elixir function brackets

Hi I'am learning elixir atm (just started) and i never used to do functional programming, so my question is what does brackets after function name do. I am watching some internet course, and want to try to make some app for training but dont really understand.

   defmodule Cards do
  def create_deck do
    values = ["Ace","Two","Three", "Four", "Five"]
    suits = ["Spades", "Clubs", "Hearts", "Diamonds"]

    for suit <- suits, value <- values do
      "#{value} of #{suit}"
    end
  end

  def shuffle(deck) do
    Enum.shuffle(deck)
  end

  def contains**(deck, card) do
    Enum.member?(deck, card)
  end

  def deal(deck, hand_size) do
    Enum.split(deck, hand_size)
  end
    def save(deck, filename) do
    binary = :erlang.term_to_binary(deck)
    File.write(filename, binary)
  end

    def load(filename) do
      {status, binary} = File.read(filename)
      :erlang.binary_to_term(binary)
    end
end

Upvotes: 0

Views: 399

Answers (1)

Onorio Catenacci
Onorio Catenacci

Reputation: 15293

The syntax (deck) is a way of specifying the argument to the function. deck is the argument passed to the shuffle function. You can find a bit more about the function syntax here.

Upvotes: 1

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