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src	New Fetch	2017-08-12 09:01:07 -05:00
tests	Initial Commit	2016-08-13 18:20:14 -05:00
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Cargo.lock	Initial Commit	2016-08-13 18:20:14 -05:00
Cargo.toml	Initial Commit	2016-08-13 18:20:14 -05:00
GETTING_STARTED.md	Initial Commit	2016-08-13 18:20:14 -05:00
README.md	Initial Commit	2016-08-13 18:20:14 -05:00

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.

Rust Installation

Refer to the exercism help page for Rust installation and learning resources.

Writing the Code

Execute the tests with:

$ cargo test

All but the first test have been ignored. After you get the first test to pass, remove the ignore flag (#[ignore]) from the next test and get the tests to pass again. The test file is located in the tests directory. You can also remove the ignore flag from all the tests to get them to run all at once if you wish.

Make sure to read the Crates and Modules chapter if you haven't already, it will help you with organizing your files.

Source

This is a program to introduce users to using Exercism view source