Hello World

Introduction

Instructions

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:

• Modify the provided code so that it produces 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.

Implementation notes

A Factor program is built from words, grouped into vocabularies.

Factor loads a vocabulary from a directory of the same name, so the hello-world vocabulary is the file hello-world.factor inside a hello-world/ directory.

: say-hello ( -- str ) … ; defines the word say-hello. The part in parentheses is its stack effect: nothing to the left of -- means it takes no input, and str to the right means it leaves one value (the name is only documentation, not a type). Everything between the stack effect and the closing ; is the body — the code that runs when the word is called.

The test suite calls say-hello and checks the value it leaves on the stack. Change the body so the word leaves "Hello, World!" instead, then run the tests.

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Source

This is an exercise to introduce users to using Exercism