Quiz

Test your knowledge of writing a functional core.

1

In the following code, what role does Point.left/1 play?

defmodule Point do
  def new() do
    {0, 0}
  end

  def left({x, y}) do
    {x+1, y}
  end

  def right({x, y}) do
    {x+1, y}
  end

  def as_string(point) do
    inspect(point)
  end
end
A)

Constructor

B)

Reducer

C)

Converter

D)

Create

Question 1 of 50 attempted

Get hands-on with 1200+ tech skills courses.