FizzBuzz

Mix.install([
  {:kino, github: "livebook-dev/kino", override: true},
  {:kino_lab, "~> 0.1.0-dev", github: "jonatanklosko/kino_lab"},
  {:vega_lite, "~> 0.1.4"},
  {:kino_vega_lite, "~> 0.1.1"},
  {:benchee, "~> 0.1"},
  {:ecto, "~> 3.7"},
  {:math, "~> 0.7.0"},
  {:faker, "~> 0.17.0"},
  {:utils, path: "#{__DIR__}/../utils"},
  {:tested_cell, git: "https://github.com/BrooklinJazz/tested_cell"}
])

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FizzBuzz

In the Elixir cell below create a Module FizzBuzz with a function run/1 which takes in a range.

Enumerate through the integers and return a new list where

• integers divisible by 3 are replaced with fizz
• integers divisible by 5 are replaced with buzz
• integers divisible by 3 and 5 are replaced with fizzbuzz
• integers not matching the above stay the same.

For example,

FizzBuzz.run(1..15)
[1, 2, "fizz", 4, "buzz", "fizz", 7, 8, "fizz", "buzz", 11, "fizz", 13, 14, "fizzbuzz"]

ExUnit.start(auto_run: false)

defmodule Assertion do
  use ExUnit.Case

  test "" do
    defmodule FizzBuzz do
      def run(range) do
      end
    end

    defmodule Solutions.FizzBuzz do
      def run(range) do
        Enum.map(range, fn n ->
          cond do
            rem(n, 15) == 0 -> "fizzbuzz"
            rem(n, 3) == 0 -> "fizz"
            rem(n, 5) == 0 -> "buzz"
            true -> n
          end
        end)
      end
    end

    assert FizzBuzz.run(1..15) == [
             1,
             2,
             "fizz",
             4,
             "buzz",
             "fizz",
             7,
             8,
             "fizz",
             "buzz",
             11,
             "fizz",
             13,
             14,
             "fizzbuzz"
           ]

    assert FizzBuzz.run(1..100) == Solutions.FizzBuzz.run(1..100)
  end
end

ExUnit.run()

# Make variables and modules defined in the test available.
# Also allows for exploration using the output of the cell.
defmodule FizzBuzz do
  def run(range) do
  end
end

Commit Your Progress

Run the following in your command line from the project folder to track and save your progress in a Git commit.

$ git add .
$ git commit -m "finish fizzbuzz exercise"