react-native start

Command-line tools to start the React Native server.

• Start the server that communicates with connected devices:

react-native start

• Start the metro bundler with a clean cache:

react-native start --reset-cache

• Start the server in a custom port (defaults to 8081):

react-native start --port {3000}

• Start the server in verbose mode:

react-native start --verbose

• Specify the maximum number of workers for transforming files (default is the number of CPU cores):

react-native start --max-workers {count}

• Disable interactive mode:

react-native start --no-interactive

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