Given students' names along with the grade that they are in, create a roster for the school.
In the end, you should be able to:
- Add a student's name to the roster for a grade
- "Add Jim to grade 2."
- "OK."
- Get a list of all students enrolled in a grade
- "Which students are in grade 2?"
- "We've only got Jim just now."
- Get a sorted list of all students in all grades. Grades should sort
as 1, 2, 3, etc., and students within a grade should be sorted
alphabetically by name.
- "Who all is enrolled in school right now?"
- "Grade 1: Anna, Barb, and Charlie. Grade 2: Alex, Peter, and Zoe. Grade 3โฆ"
Note that all our students only have one name. (It's a small town, what do you want?)
Did you get the tests passing and the code clean? If you want to, these are some additional things you could try:
- If you're working in a language with mutable data structures and your implementation allows outside code to mutate the school's internal DB directly, see if you can prevent this. Feel free to introduce additional tests.
Then please share your thoughts in a comment on the submission. Did this experiment make the code better? Worse? Did you learn anything from it?
Go through the setup instructions for TypeScript to install the necessary dependencies:
https://exercism.io/tracks/typescript/installation
Install assignment dependencies:
$ yarn install
Execute the tests with:
$ yarn test
In the test suites all tests but the first have been skipped.
Once you get a test passing, you can enable the next one by changing xit
to
it
.
A pairing session with Phil Battos at gSchool http://gschool.it
It's possible to submit an incomplete solution so you can see how others have completed the exercise.