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hello-world.js | ||
hello-world.spec.js | ||
README.md |
Hello World
Write a program that greets the user by name, or by saying "Hello, World!" if no name is given.
"Hello, World!" is the traditional first program for beginning programming in a new language.
Note: You can skip this exercise by running:
exercism skip $LANGUAGE hello-world
Specification
The Hello World!
program will greet me, the caller.
If I tell the program my name is Alice, it will greet me by saying "Hello, Alice!".
If I neglect to give it my name, it will greet me by saying "Hello, World!"
Test-Driven Development
As programmers mature, they eventually want to test their code.
Here at Exercism we simulate Test-Driven Development (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.
It will also provide you with a safety net to explore other solutions without breaking the functionality.
A typical TDD workflow on Exercism:
- Run the test file and pick one test that's failing.
- Write some code to fix the test you picked.
- Re-run the tests to confirm the test is now passing.
- Repeat from step 1.
- Submit your solution.
Instructions
Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.
It's important to remember that the goal is to make code as expressive and readable as we can. However, solutions to the hello-world exercise will be not be reviewed by a person, but by rikki- the robot, who will offer an encouraging word.
Setup
Go through the setup instructions for JavaScript to install the necessary dependencies:
http://help.exercism.io/getting-started-with-javascript.html
Making the Test Suite Pass
Execute the tests with:
$ jasmine-node .
In many test suites all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by
changing xit
to it
.
Source
This is a program to introduce users to using Exercism view source