Learn JavaScript (learnjavascript.online) is an interactive, browser-based educational platform designed to teach modern JavaScript (ES2015+) through a hands-on, project-based approach. It targets beginner developers who have some basic programming experience and aims to prepare them for real-world development by focusing on best practices.

The first 77 lessons, challenges, and projects (the first 7 chapters) are completely free. After that, you will be asked to upgrade (a one-time payment that gives you access for 5 years) if you want to access the full course.

This course is written in French.

The main features of this course include:

• Interactive Learning Environment: Users can read concise lessons, save and export personal notes, and complete coding challenges directly in their browser without any external setup.

• Modern Curriculum: The course covers the full spectrum of modern JavaScript, from fundamentals like variables and functions to advanced concepts like Asynchronous logic, Promises, Fetch, and the Event Loop.

• Real-World Projects: The platform features 17 projects inspired by popular products, such as a GitHub API repository list, a Todo app using an API, and a comprehensive Food Tracker final project.

• Integrated Flashcards App: To reinforce learning, the tool includes a separate app with over 250 flashcards that utilize spaced repetition, a proven method for long-term memory retention.

• Mobile-Friendly Practice: Learners can maintain their progress and continue their studies or review flashcards on their mobile devices.

• Test-Driven Challenges: The interactive challenges provide a test-driven environment where users can compare their code against official solutions to ensure they are following best practices.

• Visual Knowledge Tracking: The platform provides a "knowledge map" and lesson recaps to help students visualize their progress and reinforce what they have learned.

• Developer-Friendly Pricing: Unlike many subscription-based services, it offers a one-time payment for five years of access, following a generous free trial of the first 77 lessons and 7 chapters.