exercism/elixir/guessing-game/HINTS.md

Hints

General

• In Elixir's 'Getting Started Guide' there is a nice refresher about named functions.

1. Make the response when the guess matches the secret number

• You can use a guard to check if the numbers are the same with ===/2.

2. Make the response when the guess is greater than the secret number

• You can add a function clause and guards to check if the guess is greater >/2 than the secret number.

3. Make the response when the guess is less than the secret number

• You can add a function clause and guards to check if the guess is less than </2 the secret number.

4. Make the responses when the guess is one more or one less than the secret number

• You can add a function clause and guards to check if the guess is one less or one more than the secret number.
• Guards expressions can use and/2, or or/2 to combine boolean expressions.
• Pay attention to the order of the function clauses.

5. Make the response when there is no guess

• You can make use of a default argument for a guess. The default value does not have to be an integer.
• Use a function header before all the other function clauses to define the default argument.