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href=/docs/headless-js-android>Android and iOS guides</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/legacy/native-modules-intro>Legacy Architecture</a></div></ul></nav></div></div></aside><main class=docMainContainer_a9sJ><div class="container padding-top--md padding-bottom--lg"><div class=row><div class="col docItemCol_Qr34"><div class=docItemContainer_tjFy><article><div class="tocCollapsible_wXna theme-doc-toc-mobile tocMobile_Ojys"><button type=button class="clean-btn tocCollapsibleButton_iI2p">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Introduction</h1></header><div class=content-banner><p>Welcome to the very start of your React Native journey! If you're looking for getting started instructions, they've moved to <a href=environment-setup>their own section</a>. Continue reading for an introduction to the documentation, Native Components, React, and more!</p><img class=content-banner-img src=/docs/assets/p_android-ios-devices.svg alt=" "></div>
5<p>Many different kinds of people use React Native: from advanced iOS developers to React beginners, to people getting started programming for the first time in their career. These docs were written for all learners, no matter their experience level or background.</p>
6<h2 class="anchor anchorWithStickyNavbar_JmGV" id=how-to-use-these-docs>How to use these docs<a href=#how-to-use-these-docs class=hash-link aria-label="Direct link to How to use these docs" title="Direct link to How to use these docs"></a></h2>
7<p>You can start here and read through these docs linearly like a book; or you can read the specific sections you need. Already familiar with React? You can skip <a href=/docs/intro-react>that section</a>—or read it for a light refresher.</p>
8<h2 class="anchor anchorWithStickyNavbar_JmGV" id=prerequisites>Prerequisites<a href=#prerequisites class=hash-link aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2>
9<p>To work with React Native, you will need to have an understanding of JavaScript fundamentals. If you’re new to JavaScript or need a refresher, you can <a href=https://developer.mozilla.org/en-US/docs/Web/JavaScript target=_blank rel="noopener noreferrer">dive in</a> or <a href=https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript target=_blank rel="noopener noreferrer">brush up</a> at Mozilla Developer Network.</p>
10<blockquote>
11<p>While we do our best to assume no prior knowledge of React, Android, or iOS development, these are valuable topics of study for the aspiring React Native developer. Where sensible, we have linked to resources and articles that go more in depth.</p>
12</blockquote>
13<h2 class="anchor anchorWithStickyNavbar_JmGV" id=interactive-examples>Interactive examples<a href=#interactive-examples class=hash-link aria-label="Direct link to Interactive examples" title="Direct link to Interactive examples"></a></h2>
14<p>This introduction lets you get started immediately in your browser with interactive examples like this one:</p>
15<div class=snack-player data-snack-name="Hello World" data-snack-description="Example usage" data-snack-files="%7B%22App.tsx%22%3A%7B%22type%22%3A%22CODE%22%2C%22contents%22%3A%22import%20React%20from%20'react'%3B%5Cnimport%20%7BText%2C%20View%7D%20from%20'react-native'%3B%5Cn%5Cnconst%20YourApp%20%3D%20()%20%3D%3E%20%7B%5Cn%20%20return%20(%5Cn%20%20%20%20%3CView%5Cn%20%20%20%20%20%20style%3D%7B%7B%5Cn%20%20%20%20%20%20%20%20flex%3A%201%2C%5Cn%20%20%20%20%20%20%20%20justifyContent%3A%20'center'%2C%5Cn%20%20%20%20%20%20%20%20alignItems%3A%20'center'%2C%5Cn%20%20%20%20%20%20%7D%7D%3E%5Cn%20%20%20%20%20%20%3CText%3ETry%20editing%20me!%20%F0%9F%8E%89%3C%2FText%3E%5Cn%20%20%20%20%3C%2FView%3E%5Cn%20%20)%3B%5Cn%7D%3B%5Cn%5Cnexport%20default%20YourApp%3B%22%7D%7D" data-snack-dependencies=react-native-safe-area-context data-snack-platform=web data-snack-supported-platforms=ios,android,web data-snack-theme=light data-snack-preview=true data-snack-loading=lazy data-snack-device-frame=false></div>
16<p>The above is a Snack Player. It’s a handy tool created by Expo to embed and run React Native projects and share how they render in platforms like Android and iOS. The code is live and editable, so you can play directly with it in your browser. Go ahead and try changing the "Try editing me!" text above to "Hello, world!"</p>
17<blockquote>
18<p>Optionally, if you want to set up a local development environment, <a href=/docs/set-up-your-environment>you can follow our guide to setting up your environment on your local machine</a> and paste the code examples into your project. (If you are a web developer, you may already have a local environment set up for mobile browser testing!)</p>
19</blockquote>
20<h2 class="anchor anchorWithStickyNavbar_JmGV" id=developer-notes>Developer Notes<a href=#developer-notes class=hash-link aria-label="Direct link to Developer Notes" title="Direct link to Developer Notes"></a></h2>
21<p>People from many different development backgrounds are learning React Native. You may have experience with a range of technologies, from web to Android to iOS and more. We try to write for developers from all backgrounds. Sometimes we provide explanations specific to one platform or another like so:</p>
22<div class="tabs-container tabList_J5MA"><ul role=tablist aria-orientation=horizontal class=tabs><li role=tab tabindex=-1 aria-selected=false class="tabs__item tabItem_l0OV">Android<li role=tab tabindex=-1 aria-selected=false class="tabs__item tabItem_l0OV">iOS<li role=tab tabindex=0 aria-selected=true class="tabs__item tabItem_l0OV tabs__item--active">Web</ul><div class=margin-top--md><div role=tabpanel class=tabItem_wHwb hidden><blockquote>
23<p>Android developers may be familiar with this concept.</p>
24</blockquote></div><div role=tabpanel class=tabItem_wHwb hidden><blockquote>
25<p>iOS developers may be familiar with this concept.</p>
26</blockquote></div><div role=tabpanel class=tabItem_wHwb><blockquote>
27<p>Web developers may be familiar with this concept.</p>
28</blockquote></div></div></div>
29<h2 class="anchor anchorWithStickyNavbar_JmGV" id=formatting>Formatting<a href=#formatting class=hash-link aria-label="Direct link to Formatting" title="Direct link to Formatting"></a></h2>
30<p>Menu paths are written in bold and use carets to navigate submenus. Example: <strong>Android Studio > Preferences</strong></p>
31<hr>
32<p>Now that you know how this guide works, it's time to get to know the foundation of React Native: <a href=/docs/intro-react-native-components>Native Components</a>.</div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class=editButtons_t0bR><a href=https://github.com/facebook/react-native-website/edit/main/docs/introduction.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_bHB7 aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit page for next release</a><a href=https://github.com/facebook/react-native-website/edit/main/website/versioned_docs/version-0.79/introduction.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" 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