Iphone safari inspector emulator mac mac os#
Iphone safari inspector emulator mac full#
Iphone safari inspector emulator mac code#

You can use Safari to debug the iOS version of your app without having to enable 'Debug JS Remotely'.

For example, if you set REACT_DEBUGGER='node /path/to/launchDebugger.js -port 2345 -type ReactNative', then the command node /path/to/launchDebugger.js -port 2345 -type ReactNative /path/to/reactNative/app will be used to start your debugger.Д¬ustom debugger commands executed this way should be short-lived processes, and they shouldn't produce more than 200 kilobytes of output.

The debugger will receive a list of all project roots, separated by a space. You can then select 'Debug JS Remotely' from the Developer Menu to start debugging. To use a custom JavaScript debugger in place of Chrome Developer Tools, set the REACT_DEBUGGER environment variable to a command that will start your custom debugger. Debugging using a custom JavaScript debugger # Note: the React Developer Tools Chrome extension does not work with React Native, but you can use its standalone version instead. You may also want to enable Pause On Caught Exceptions for a better debugging experience. You may also access the DevTools using keyboard shortcuts ( вЊвЊҐI on macOS, Ctrl Shift I on Windows). This will open a new tab at Select Tools в†’ Developer Tools from the Chrome Menu to open the Developer Tools.

Iphone safari inspector emulator mac code#

To debug the JavaScript code in Chrome, select 'Debug JS Remotely' from the Developer Menu. RedBoxes and YellowBoxes are automatically disabled in release (production) builds. In CI/Xcode, YellowBoxes can also be disabled by setting the IS_TESTING environment variable. Specific warnings can be ignored programmatically by setting an array of prefixes that should be ignored: YellowBoxes can be disabled during development by using console.disableYellowBox = true. Click on the alerts to show more information or to dismiss them.ДЄs with a RedBox, you can use console.warn() to trigger a YellowBox. Warnings will be displayed on screen with a yellow background. You can use console.error() to manually trigger one.

Iphone safari inspector emulator mac full#

In-app errors are displayed in a full screen alert with a red background inside your app. In-app Errors and Warnings #Д®rrors and warnings are displayed inside your app in development builds. To enable them, open the Hardware menu, select Keyboard, and make sure that 'Connect Hardware Keyboard' is checked. React Native supports a few keyboard shortcuts in the iOS Simulator. When enabled, most of your edits should be visible within a second or two. Fast Refresh is enabled by default, and you can toggle 'Enable Fast Refresh' in the React Native developer menu. While debugging, it can help to have Fast Refresh enabled. Enabling Fast Refresh #ДЇast Refresh is a React Native feature that allows you to get near-instant feedback for changes in your React components. The Developer Menu is disabled in release (production) builds. Alternatively for Android, you can run the command adb shell input keyevent 82 to open the dev menu (82 being the Menu key code).

Iphone safari inspector emulator mac mac os#

You can also use the вЊD keyboard shortcut when your app is running in the iOS Simulator, or вЊM when running in an Android emulator on Mac OS and Ctrl+M on Windows and Linux. You can access the developer menu by shaking your device or by selecting 'Shake Gesture' inside the Hardware menu in the iOS Simulator. Debugging Accessing the In-App Developer Menu #