Language List
10 Points
arrays-and-lists
Instructions
You're going to write some code to manage a list of programming languages to learn.
The list will be contained in an array called @LanguageList::Languages.
1. Add a language to the @Languages array
Modify the LanguageList::add_language subroutine, which takes a language name as an argument, to add the language to the end of the @LanguageList::Languages array.
2. Remove a language from the @Languages array
Modify the LanguageList::remove_language subroutine to remove the last language from the @LanguageList::Languages array.
3. Fetch the first language from the @Languages array
Modify the LanguageList::first_language subroutine to return the first language in the @LanguageList::Languages array.
4. Fetch the last language from the @Languages array
Modify the LanguageList::last_language subroutine to return the last language in the @LanguageList::Languages array.
5. Fetch a slice of languages from the @Languages array
Modify the LanguageList::get_languages subroutine, which takes a list of numbers for wanted elements, to return a slice of the @LanguageList::Languages array.
6. Check if a language exists in the @Languages array
Modify the LanguageList::has_language subroutine, which takes a language name as an argument, to return either a true or false value indicating if the language exists in the @LanguageList::Languages array.
Language List
10 Points
arrays-and-lists
Instructions
You're going to write some code to manage a list of programming languages to learn.
The list will be contained in an array called @LanguageList::Languages.
1. Add a language to the @Languages array
Modify the LanguageList::add_language subroutine, which takes a language name as an argument, to add the language to the end of the @LanguageList::Languages array.
2. Remove a language from the @Languages array
Modify the LanguageList::remove_language subroutine to remove the last language from the @LanguageList::Languages array.
3. Fetch the first language from the @Languages array
Modify the LanguageList::first_language subroutine to return the first language in the @LanguageList::Languages array.
4. Fetch the last language from the @Languages array
Modify the LanguageList::last_language subroutine to return the last language in the @LanguageList::Languages array.
5. Fetch a slice of languages from the @Languages array
Modify the LanguageList::get_languages subroutine, which takes a list of numbers for wanted elements, to return a slice of the @LanguageList::Languages array.
6. Check if a language exists in the @Languages array
Modify the LanguageList::has_language subroutine, which takes a language name as an argument, to return either a true or false value indicating if the language exists in the @LanguageList::Languages array.