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<html><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1"/><title>Running On Simulator · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="Running On Simulator · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/index.html"/><meta property="og:description" content="## Starting the simulator"/><link rel="shortcut icon" href="/react-native/img/favicon.png"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" 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<p>Once you have your React Native project initialized, you can run <code>react-native run-ios</code> inside the newly created project directory. If everything is set up correctly, you should see your new app running in the iOS Simulator shortly.</p>
<h2><a class="anchor" aria-hidden="true" name="specifying-a-device"></a><a href="#specifying-a-device" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Specifying a device</h2>
<p>You can specify the device the simulator should run with the <code>--simulator</code> flag, followed by the device name as a string. The default is <code>&quot;iPhone 6&quot;</code>. If you wish to run your app on an iPhone 4s, just run <code>react-native run-ios --simulator=&quot;iPhone 4s&quot;</code>.</p>
<p>The device names correspond to the list of devices available in Xcode. You can check your available devices by running <code>xcrun simctl list devices</code> from the console.</p>
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