22a. Hangman DH Warmup

The key step is to draw the word with underscores for the letters missed.

This page will not include any specific advice on how to draw the word with underscores for the letters that are not guessed. The wipeout function below should provide you will all of the skills you need to do it, though.

Underscore Warmup I: omit

The omit function takes in a word and a letter and returns the same word with every occurence of the letter omitted (left out).

omit: string(word) string(letter) -> string
(check-expect (omit "word" "w") "ord")
(check-expect (omit "hangman" "a") "hngmn")
(check-expect (omit "nothing" "z") "nothing")

Follow the design process to write the omit function.

1. Simple examples that build up to a three letter word, showing how a letter can be omitted zero, one, or two times.
2. Write the function: handle the empty word
3. Write the function: handle one letter word
4. Write the function: handler longer words

Run your checks after each step to make sure you stay on track.

Underscore Warmup II: wipeout

The wipeout function takes in a word and a string of letters to remove. Every occurence of the letters should be removed from the word.

wipeout: string(word) string(letters) -> string
(check-expect (wipeout "Williams" "li") "Wams")
(check-expect (wipeout "penguin" "dinosaur") "peg")

Follow the design process and use the omit helper function!