End-Module Assessment

This challenge is designed to assess the JavaScript skills you have gained so far.

There are 31 unit tests that need to pass. Each passing test will be worth 1 point.

A minium of 22 points must be attained in order to pass this assessment.

There is no partial credit for the tests.

Assessment Setup

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:

• movies.js: 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, exampleMovies, that contains all of the movies from the movies.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-movies.js: Another array of movies that the tests will make use of, in addition to those movies from the movies.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.

Learning Objectives Assessed

The following learning objectives will be assessed in this assessment:

• Create and assign values to variables.
• Use arithmetic operators to build simple mathematical equations.
• Represent logical assertions using ===, &&, ||, and !.
• Conditionally run code based on values and expressions.
• Create functions with parameters using the function declaration syntax.
• Return values from functions.
• Interpret JSDoc function comments.
• Interpret test output in order to take actionable steps in code.
• Access elements in an array through bracket notation.
• Access values in an object through bracket and dot notation.
• Update values in an object with bracket and dot notation.
• Differentiate between arrays and objects.
• Write a for loop with a variable number of iterations.
• Write for...of loops to iterate over arrays.
• Use the command line to navigate via absolute and relative paths.
• Install and use the code command to open VSCode.
• Stage files with git add.
• Commit files with a sensible commit message using git commit -m.
• Fork and clone a repository.
• Create a pull request using a forked repository.
• Run JavaScript files with the node command.
• Apply the accumulator pattern to problems that return strings, numbers, or booleans.
• Apply the accumulator pattern to problems that return arrays.