Learn React Page in React Docs

• Component Creation and Nesting: Learn how to create React components and nest them to build complex user interfaces.
• Markup and Styling: Understand how to add HTML-like markup and apply styles to components using JSX.
• Data Display and Rendering: Master the techniques for displaying dynamic data, rendering lists, and applying conditional logic within your components.
• Event Handling: Discover how to respond to user interactions and update the UI in response to events.
• Data Sharing: Learn strategies for sharing data between components, ensuring seamless interaction across your application.

This Quick Start guide to React covers the fundamental concepts you will use daily as a React developer. Designed to be accessible for developers of all levels, this documentation offers tutorials and interactive elements that facilitate hands-on learning. It aims to provide a comprehensive introduction to 80% of the core React concepts, from building your first component to managing complex state logic.

• Developers new to React who want a comprehensive overview of the library's core concepts.
• Intermediate developers seeking to solidify their understanding of React fundamentals.
• Advanced developers looking for a quick refresher on key React concepts.
• Educators and students using React for building web applications.

• Familiarity with HTML, CSS, and JavaScript is recommended.
• Understanding of basic programming concepts will be helpful.

UI Fundamentals:

• Overview: Introduction to key React concepts.
• Your First Component: Create your initial React component.
• Importing and Exporting Components: Learn to organize components by importing and exporting them across files.
• Writing Markup with JSX: Use JSX to write HTML-like code within JavaScript.
• JavaScript in JSX with Curly Braces: Integrate JavaScript expressions into JSX.
• Passing Props to a Component: Understand how to pass data to components using props.
• Conditional Rendering: Implement logic to render components conditionally.
• Rendering Lists: Efficiently render lists of data using React.
• Keeping Components Pure: Learn about the importance of pure components.
• Your UI as a Tree: Visualize the component hierarchy as a tree structure.

Adding Interactivity:

• Responding to Events: Handle user interactions and respond to events in the UI.
• State: A Component’s Memory: Use state to manage component data.
• Render and Commit: Understand the render and commit phases of React.
• State as a Snapshot: Learn how React treats state as a snapshot of data.
• Queueing a Series of State Updates: Manage multiple state updates efficiently.
• Updating Objects and Arrays in State: Best practices for updating stateful objects and arrays.

Managing State:

• Reacting to Input with State: Update UI in response to user inputs.
• Choosing the State Structure: Determine the optimal structure for your state.
• Sharing State Between Components: Techniques for sharing state across components.
• Preserving and Resetting State: Manage the lifecycle of component state.
• Extracting State Logic into a Reducer: Use reducers to manage complex state logic.
• Passing Data Deeply with Context: Utilize context to pass data through the component tree.

Escape Hatches:

• Referencing Values with Refs: Access and manipulate DOM nodes using refs.
• Manipulating the DOM with Refs: Perform DOM operations with refs.
• Synchronizing with Effects: Use effects to synchronize components with external systems.
• Lifecycle of Reactive Effects: Explore the lifecycle of effects in React.
• Reusing Logic with Custom Hooks: Create custom hooks to encapsulate reusable logic.