Random Line

This library returns a random line for a given file, but you must provide your own file.

Preparing your environment

• Install Node and npm
• Create an npm account here: Node Package Manager
• Go to GitLab and create an account.

Pushing your code there

• Create a new repository, and push this code there.
• run npm login
• run npm init
• Make sure to include your username on the package name. Example: @melomario/random-line

A wild new file appears, and it's called package.json.

Writing your first test and function

Ok. It's time to learn how to manage our dependencies. You can run the following command to add a test framework to your project:

npm install --save-dev jest or a shortcut: npm i -D jest

The --save-dev or -D section establishes that the jest framework is not going to be necessary in production. We'll use it to validate our code, but we don't need it bloating our production servers, right?

If you look into the package.json file, you'll see a new command. This command is used to run tests: npm run test. Try it on your terminal.

💡 Exercise 1 💡

• There's a test with small problem. Find it and fix it.
• Also, try to add more words to the sample file assets/words.txt and run your tests again

💡 Exercise 2 💡

Now it's time to publish (the first version) of your library! Make sure you insert some new words on your words file and then run npm publish --access public