The classical introductory exercise. Just say "Hello, World!".
"Hello, World!" is the traditional first program for beginning programming in a new language or environment.
The objectives are simple:
If everything goes well, you will be ready to fetch your first real exercise.
This is an exercise to introduce users to using Exercism http://en.wikipedia.org/wiki/%22Hello,_world!%22_program
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
% Please visit https://exercism.io/tracks/prolog/installation % for instructions on setting up prolog. % Visit https://exercism.io/tracks/prolog/tests % for help running the tests for prolog exercises. % The goal below allows tests to be skipped % unless the "--all" flag is passed at % the command line. pending :- current_prolog_flag(argv, ['--all'|_]). pending :- write('\nA TEST IS PENDING!\n'), fail. :- begin_tests(hello_world). test(hello_world, condition(true)) :- hello_world('Hello World!'). % Once the first test passes, un-skip the following test by % changing `pending` in `condition(pending)` to `true`. % Repeat for each test until they are all passing. :- end_tests(hello_world).
A huge amount can be learned from reading other people’s code. This is why we wanted to give exercism users the option of making their solutions public.
Here are some questions to help you reflect on this solution and learn the most from it.