What is JavaScript?
JavaScript is the programming language of the web. It runs in browsers and, with runtimes such as Node.js, on servers and development tools.
Where is JavaScript used?
- Interactive websites
- Backend APIs and real-time services
- Cross-platform mobile and desktop apps
- Browser automation and tooling
Prerequisites to learn JavaScript
- Basic HTML and CSS are helpful for browser projects
- A modern browser and code editor
- No previous programming language is required
Advantages of JavaScript
- Runs in every modern browser
- Large ecosystem and community
- Supports frontend and backend development
- Good feedback loop for beginners
Limitations of JavaScript
- Type coercion can produce surprising results
- The ecosystem changes quickly
- Asynchronous code requires careful learning
Start learning JavaScript
Open the course contents menu to follow the lessons in order, or choose the topic that matches your current goal.
