PRACTICE ASSESSMENT

Getting started

1. Fork and clone this repository.

2. Navigate to the cloned repository's directory on your command line. Then, run the following command:

   npm install
   

   This will install the libraries needed to run the tests.

3. Open up the repository in VSCode. Follow the instructions below to complete the Lab.

Tests

To run the tests, you can run the following command from the command line. You will need to be in the root directory of your local directory.

npm test

This will run the test output once.

Test watcher

If you'd like, you can have the tests run constantly. This means that each time you save your file, your tests will re-run. To do so, you can run the following:

npm run watch

Follow the on-screen prompts to exit out of the constant runner.

Run file

If you want to manually test out your file, you can do so by running the following command.

node index.js

The output will be printed to your terminal.

Assessment instructions

Existing files

This repository contains the following files that you may need to edit or want to take a look at:

• cities.js: A list of the ten most populous cities in North America. This is the data that you can expect to be inserted into your function.
• index.js: This is where you will write your code. This is the only file you should need to edit. This file contains a variable, exampleCities, that contains all of the cities from the cities.js file. You may use this variable if you'd like to run the index.js file from your command line.
• __tests__/index.test.js: All of the tests for the functions.
• __tests__/fixtures/alternate-cities.js: Another array of cities that the tests will make use of, in addition to those cities from the cities.js file.

Tasks

After getting this repository running on your current machine, you will then need to do the following for each function:

• Complete the function so that the tests pass.
• Add and commit your changes.
• Push your code up to GitHub.

Please add and commit regularly. You should not end up with a single additional commit for this assessment.

Function descriptions

You will find examples and descriptions in both the index.js file and in the __tests__/index.test.js file.