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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>Other Debugging Methods</h1></header><p>This page covers how to use legacy JavaScript debugging methods. If you are getting started with a new React Native or Expo app, we recommend using <a href=/docs/react-native-devtools>React Native DevTools</a>.</p> 5<h2 class="anchor anchorWithStickyNavbar_JmGV" id=safari-developer-tools-direct-jsc-debugging>Safari Developer Tools (direct JSC debugging)<a href=#safari-developer-tools-direct-jsc-debugging class=hash-link aria-label="Direct link to Safari Developer Tools (direct JSC debugging)" title="Direct link to Safari Developer Tools (direct JSC debugging)">​</a></h2> 6<p>You can use Safari to debug the iOS version of your app when using <a href=https://trac.webkit.org/wiki/JavaScriptCore target=_blank rel="noopener noreferrer">JavaScriptCore</a> (JSC) as your app's runtime.</p> 7<ol> 8<li><strong>Physical devices only</strong>: Open the Settings app, and navigate to Safari > Advanced, and make sure "Web Inspector" is turned on.</li> 9<li>On your Mac, open Safari and enable the Develop menu. This can be found under Safari > Settings..., then the Advanced tab, then selecting "Show features for web developers".</li> 10<li>Find your device under the Develop menu, and select the "JSContext" item from the submenu. This will open Safari's Web Inspector, which includes Console and Sources panels similar to Chrome DevTools.</li> 11</ol> 12<p><img decoding=async loading=lazy alt="Opening Safari Web Inspector" src=/assets/images/debugging-safari-developer-tools-a67219e1ea0f852bbb150c988b00c3cf.jpg width=1600 height=730 class=img_SS3x></p> 13<div class="theme-admonition theme-admonition-tip admonition_WCGJ alert alert--success"><div class=admonitionHeading_GCBg><span class=admonitionIcon_L39b><svg viewBox="0 0 12 16"><path fill-rule=evenodd d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"/></svg></span>tip</div><div class=admonitionContent_pbrs><p>While source maps may not be enabled by default, you can follow <a href=https://blog.nparashuram.com/2019/10/debugging-react-native-ios-apps-with.html target=_blank rel="noopener noreferrer">this guide</a> or <a href="https://www.youtube.com/watch?v=GrGqIIz51k4" target=_blank rel="noopener noreferrer">video</a> to enable them and set break points at the right places in the source code.</div></div> 14<div class="theme-admonition theme-admonition-tip admonition_WCGJ alert alert--success"><div class=admonitionHeading_GCBg><span class=admonitionIcon_L39b><svg viewBox="0 0 12 16"><path fill-rule=evenodd d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"/></svg></span>tip</div><div class=admonitionContent_pbrs><p>Every time the app is reloaded, a new JSContext is created. Choosing "Automatically Show Web Inspectors for JSContexts" saves you from having to select the latest JSContext manually.</div></div> 15<h2 class="anchor anchorWithStickyNavbar_JmGV" id=remote-javascript-debugging-removed>Remote JavaScript Debugging (removed)<a href=#remote-javascript-debugging-removed class=hash-link aria-label="Direct link to Remote JavaScript Debugging (removed)" title="Direct link to Remote JavaScript Debugging (removed)">​</a></h2> 16<div class="theme-admonition theme-admonition-warning admonition_WCGJ alert alert--warning"><div class=admonitionHeading_GCBg><span class=admonitionIcon_L39b><svg viewBox="0 0 16 16"><path fill-rule=evenodd d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 0 0 0 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 0 0 .01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"/></svg></span>Important</div><div class=admonitionContent_pbrs><p>Remote JavaScript Debugging has been removed as of React Native 0.79. See the original <a href=https://github.com/react-native-community/discussions-and-proposals/discussions/734 target=_blank rel="noopener noreferrer">deprecation announcement</a>.<p>If you are on an older version of React Native, please go to the docs <a href=/versions>for your version</a>.</div></div> 17<p><img decoding=async loading=lazy alt="The remote debugger window in Chrome" src=/assets/images/debugging-chrome-remote-debugger-09207af31fea81d1d97a81a0d96774ba.jpg width=1600 height=680 class=img_SS3x></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/other-debugging-methods.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 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