React

My skill level: Beginner

React is a popular JavaScript library for building interactive user interfaces from reusable components. It powers the front-end of modern single-page and server-rendered web applications.

Key Features:

• Component-based: Build encapsulated components that manage their own state and compose them into complex UIs.
• Declarative: Describe what the UI should look like for each state and let React update the DOM efficiently.
• Hooks: Manage state and side effects directly in function components.
• Rich ecosystem: Works with a vast ecosystem of libraries and tools, including Next.js.