S3 Movie Data Processing

📄 Description

This sprint focuses on developing functions to manage and analyze a dataset of movies, including tasks like extracting director data, calculating average ratings, and sorting movies. The project emphasizes the practice of essential JavaScript methods such as map, reduce, and filter, as well as creating unit tests to verify functionality.

Objectives

• Practice using array methods like map, reduce, and filter.
• Learn to create unit tests.
• Manipulate a dataset for targeted information extraction.

📐 Project Structure

⭐ Level 1

• Exercise 1: Implement the getAllDirectors() function, which returns an array containing only the directors of the movies. Use .map() to extract the director field from each movie object. This function should not render the result; it should return the array.

• Exercise 2: Create the getMoviesFromDirector() function, which receives a director's name as a parameter and returns an array of movies they directed. Use .filter() to isolate movies by the specified director.

• Exercise 3: Implement the moviesAverageOfDirector() function, which calculates the average rating of a director's movies. This function should accept an array of movies and return the average rating with two decimal precision. Use .reduce() to compute the average.

• Exercise 4: Develop a function to sort movies alphabetically by title and return only the first 20 titles. Review the tests in films.spec.js to verify whether you need to return full movie objects or only titles.

• Exercise 5: Create a function to sort movies by release year. If multiple movies share the same year, they should be further sorted alphabetically by title.

• Exercise 6: Implement functionality for users to view the average rating of movies within a specified genre. Begin by writing a unit test for this feature in tests/films.spec.js. Then, create a function that accepts a genre as input and calculates the average rating for that genre.

⭐⭐ Level 2

• Exercise 7: Convert movie durations from the "hours and minutes" format to a single integer in minutes. For example, a movie duration of "2h 34min" should be converted to 154.

⭐⭐⭐ Level 3

• Exercise 8: Implement a function to identify the highest-rated movie of each year. This function should accept a year as input and return the top-rated movie for that year.

💻 Technologies Used

• JavaScript (ES6)
• Jest.js (for testing)

📋 Requirements

• JavaScript ES6 or higher
• Jest.js for running unit tests

🛠️ Installation

1. Clone this repository:

git clone https://github.com/dracudev/S3-Testing-JS.git

2. Navigate to the project directory:

cd S3-Testing-JS

3. Open the project in your text editor and start coding.

code .

▶️ Execution

1. Run the tests to validate functionality. This will automatically generate a test-results.html file showing test outcomes.

npm install
npm run test:watch

2. Open test-results.html in a browser (recommended to use the Live Server plugin in Visual Studio Code for auto-refresh).