hello-crystal
Hello World
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:
- Write a function that returns the string "Hello, World!".
- Run the test suite and make sure that it succeeds.
- Submit your solution and check it at the website.
If everything goes well, you will be ready to fetch your first real exercise.
Project Structure
src
contains your solution to the exercisespec
contains the tests to run for the exercise
Running Tests
If you're in the right directory (i.e. the one containing src
and spec
), you can run the tests for that exercise by running crystal spec
:
$ pwd
/Users/johndoe/Code/exercism/crystal/hello-world
$ ls
GETTING_STARTED.md README.md spec src
$ crystal spec
This will run all of the test files in the spec
directory.
In each test file, all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by changing pending
to it
.
Submitting Your Solution
Be sure to submit the source file in the src
directory when submitting your solution:
$ exercism submit src/hello_world.cr
Setup
Follow the setup instructions for Crystal here:
http://exercism.io/languages/crystal
More help installing can be found here:
http://crystal-lang.org/docs/installation/index.html
Making the Test Suite Pass
Execute the tests with:
$ crystal spec
In each test suite all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by changing pending
to it
.
Source
This is an exercise to introduce users to using Exercism http://en.wikipedia.org/wiki/%22Hello,_world!%22_program
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
hello-crystal
hello-crystal
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- over 4 years ago
- August 10, 2020
Thu, 21 Nov 2024 11:03:04 GMT