Treasure Matching

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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Treasure Matching

In this exercise, you’re going to use pattern matching to extract the "jewel" string from the data provided and bind it to a jewel variable. The first exercise is complete for example.

[_, _, _, jewel] = [1, 2, 3, "jewel"]

Utils.feedback(:jewel, jewel)

Replace nil with your answer.

nil = [1, 2, 3, "jewel"]

Utils.feedback(:jewel, jewel)

nil = %{key1: "value", key2: "jewel"}

Utils.feedback(:jewel, jewel)

nil = %{1 => "jewel"}

Utils.feedback(:jewel, jewel)

nil = %{%{key: [1, 2, 3, 4, 5, {}]} => "jewel"}

Utils.feedback(:jewel, jewel)

nil = %{north: %{south: %{west: %{east: "jewel"}}}}

Utils.feedback(:jewel, jewel)

nil = %{"jewel" => 1}

Utils.feedback(:jewel, jewel)

nil = [2, "jewel"]

Utils.feedback(:jewel, jewel)

nil = ["jewel", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]

Utils.feedback(:jewel, jewel)

nil = [1, "jewel", 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]

Utils.feedback(:jewel, jewel)

nil = [1, 2, "jewel", 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]

Utils.feedback(:jewel, jewel)

nil = [[], [1, [2, "jewel"]]]

Utils.feedback(:jewel, jewel)

nil = "here is the jewel"

Utils.feedback(:jewel, jewel)

nil = {"jewel"}

Utils.feedback(:jewel, jewel)

nil = {"jewel", 1}

Utils.feedback(:jewel, jewel)

nil = {1, 2, "jewel"}

Utils.feedback(:jewel, jewel)

nil = ["jewel"] ++ Enum.to_list(1..100)

Utils.feedback(:jewel, jewel)

nil = [key: "jewel"]

Utils.feedback(:jewel, jewel)

nil = Enum.map(1..4, fn each -> (each == 2 && "jewel") || each end)

Utils.feedback(:jewel, jewel)

nil = Enum.map(1..4, &((&1 > 3 && "jewel") || &1))

Utils.feedback(:jewel, jewel)

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 treasure matching exercise"