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Organization: Archive Team

Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.

History is littered with hundreds of conflicts over the future of a community, group, location or business that were "resolved" when one of the parties stepped ahead and destroyed what was there. With the original point of contention destroyed, the debates would fall to the wayside. Archive Team believes that by duplicated condemned data, the conversation and debate can continue, as well as the richness and insight gained by keeping the materials. Our projects have ranged in size from a single volunteer downloading the data to a small-but-critical site, to over 100 volunteers stepping forward to acquire terabytes of user-created data to save for future generations.

The main site for Archive Team is at archiveteam.org and contains up to the date information on various projects, manifestos, plans and walkthroughs.

This collection contains the output of many Archive Team projects, both ongoing and completed. Thanks to the generous providing of disk space by the Internet Archive, multi-terabyte datasets can be made available, as well as in use by the Wayback Machine, providing a path back to lost websites and work.

Our collection has grown to the point of having sub-collections for the type of data we acquire. If you are seeking to browse the contents of these collections, the Wayback Machine is the best first stop. Otherwise, you are free to dig into the stacks to see what you may find.

The Archive Team Panic Downloads are full pulldowns of currently extant websites, meant to serve as emergency backups for needed sites that are in danger of closing, or which will be missed dearly if suddenly lost due to hard drive crashes or server failures.

Collection: Archive Team: URLs

TIMESTAMPS

The Wayback Machine - http://web.archive.org/web/20220203110654/https://reactjs.org/docs/getting-started.html
 

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Getting Started


This page is an overview of the React documentation and related resources.

React is a JavaScript library for building user interfaces. Learn what React is all about on our homepageorin the tutorial.



Try React

Learn React

Staying Informed

Versioned Documentation

Something Missing?

Try React 


React has been designed from the start for gradual adoption, and you can use as little or as much React as you need. Whether you want to get a taste of React, add some interactivity to a simple HTML page, or start a complex React-powered app, the links in this section will help you get started.

Online Playgrounds 


If youre interested in playing around with React, you can use an online code playground. Try a Hello World template on CodePen, CodeSandbox, or Stackblitz.

If you prefer to use your own text editor, you can also download this HTML file, edit it, and open it from the local filesystem in your browser. It does a slow runtime code transformation, so wed only recommend using this for simple demos.

Add React to a Website 


You can add React to an HTML page in one minute. You can then either gradually expand its presence, or keep it contained to a few dynamic widgets.

Create a New React App 


When starting a React project, a simple HTML page with script tags might still be the best option. It only takes a minute to set up!

As your application grows, you might want to consider a more integrated setup. There are several JavaScript toolchains we recommend for larger applications. Each of them can work with little to no configuration and lets you take full advantage of the rich React ecosystem. Learn how.

Learn React 


People come to React from different backgrounds and with different learning styles. Whether you prefer a more theoretical or a practical approach, we hope youll find this section helpful.


If you prefer to learn by doing, start with our practical tutorial.

If you prefer to learn concepts step by step, start with our guide to main concepts.


Like any unfamiliar technology, React does have a learning curve. With practice and some patience, you will get the hang of it.

First Examples 


The React homepage contains a few small React examples with a live editor. Even if you dont know anything about React yet, try changing their code and see how it affects the result.

React for Beginners 


If you feel that the React documentation goes at a faster pace than youre comfortable with, check out this overview of React by Tania Rascia. It introduces the most important React concepts in a detailed, beginner-friendly way. Once youre done, give the documentation another try!

React for Designers 


If youre coming from a design background, these resources are a great place to get started.

JavaScript Resources 


The React documentation assumes some familiarity with programming in the JavaScript language. You dont have to be an expert, but its harder to learn both React and JavaScript at the same time.

We recommend going through this JavaScript overview to check your knowledge level. It will take you between 30 minutes and an hour but you will feel more confident learning React.


Tip

Whenever you get confused by something in JavaScript, MDN and javascript.info are great websites to check. There are also community support forums where you can ask for help.

Practical Tutorial 


If you prefer to learn by doing, check out our practical tutorial. In this tutorial, we build a tic-tac-toe game in React. You might be tempted to skip it because youre not into building games  but give it a chance. The techniques youll learn in the tutorial are fundamental to building any React apps, and mastering it will give you a much deeper understanding.

Step-by-Step Guide 


If you prefer to learn concepts step by step, our guide to main concepts is the best place to start. Every next chapter in it builds on the knowledge introduced in the previous chapters so you wont miss anything as you go along.

Thinking in React 


Many React users credit reading Thinking in React as the moment React finally clicked for them. Its probably the oldest React walkthrough but its still just as relevant.

Sometimes people find third-party books and video courses more helpful than the official documentation. We maintain a list of commonly recommended resources, some of which are free.

Advanced Concepts 


Once youre comfortable with the main concepts and played with React a little bit, you might be interested in more advanced topics. This section will introduce you to the powerful, but less commonly used React features like context and refs.

API Reference 


This documentation section is useful when you want to learn more details about a particular React API. For example, React.Component API reference can provide you with details on how setState() works, and what different lifecycle methods are useful for.

Glossary and FAQ 


The glossary contains an overview of the most common terms youll see in the React documentation. There is also a FAQ section dedicated to short questions and answers about common topics, including making AJAX requests, component state, and file structure.

Staying Informed 


The React blog is the official source for the updates from the React team. Anything important, including release notes or deprecation notices, will be posted there first.

You can also follow the @reactjs account on Twitter, but you wont miss anything essential if you only read the blog.

Not every React release deserves its own blog post, but you can find a detailed changelog for every release in the CHANGELOG.md file in the React repository, as well as on the Releases page.

Versioned Documentation 


This documentation always reflects the latest stable version of React. Since React 16, you can find older versions of the documentation on a separate page. Note that documentation for past versions is snapshotted at the time of the release, and isnt being continuously updated.

Something Missing? 


If something is missing in the documentation or if you found some part confusing, please file an issue for the documentation repository with your suggestions for improvement, or tweet at the @reactjs account. We love hearing from you!
Is this page useful?Edit this page



Installation

Getting Started
Add React to a Website
Create a New React App
CDN Links
Release Channels

Main Concepts

1. Hello World
2. Introducing JSX
3. Rendering Elements
4. Components and Props
5. State and Lifecycle
6. Handling Events
7. Conditional Rendering
8. Lists and Keys
9. Forms
10. Lifting State Up
11. Composition vs Inheritance
12. Thinking In React

Advanced Guides

Accessibility
Code-Splitting
Context
Error Boundaries
Forwarding Refs
Fragments
Higher-Order Components
Integrating with Other Libraries
JSX In Depth
Optimizing Performance
Portals
Profiler
React Without ES6
React Without JSX
Reconciliation
Refs and the DOM
Render Props
Static Type Checking
Strict Mode
Typechecking With PropTypes
Uncontrolled Components
Web Components

API Reference

React
React.Component
ReactDOM
ReactDOMServer
DOM Elements
SyntheticEvent
Test Utilities
Test Renderer
JS Environment Requirements
Glossary

Hooks

1. Introducing Hooks
2. Hooks at a Glance
3. Using the State Hook
4. Using the Effect Hook
5. Rules of Hooks
6. Building Your Own Hooks
7. Hooks API Reference
8. Hooks FAQ

Testing

Testing Overview
Testing Recipes
Testing Environments

Contributing

How to Contribute
Codebase Overview
Implementation Notes
Design Principles

FAQ

AJAX and APIs
Babel, JSX, and Build Steps
Passing Functions to Components
Component State
Styling and CSS
File Structure
Versioning Policy
Virtual DOM and Internals
Next article
Add React to a Website

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