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What actually do the 'npm start command' when run react app on a physical device. Is it mandatory to write this command to run react app on a real device? If Yes then why and if No why?

Kartikey
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debam das
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  • What have you tried to achieve your wanted results? What has your research concerning your problem shown? Can you provide code of your tries? [How do I ask a good question](https://stackoverflow.com/help/how-to-ask), [How much research effort is expected](https://meta.stackoverflow.com/questions/261592/how-much-research-effort-is-expected-of-stack-overflow-users) and [How to create a Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve) might be helpful to improve your question. – Geshode Jan 11 '18 at 05:50
  • https://stackoverflow.com/questions/41350660/react-native-run-android-and-react-native-start – user7997603 Jan 11 '18 at 05:56

1 Answers1

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For apps created with create-react-native-app, the command is npm start.

Non-crna apps are run on a physical device by connecting the device, executing any necessary authorization steps and running either react-native run-ios or react-native run-android.

Kaivosukeltaja
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  • My concern is when run my application on emulator I don't give "npm start" command and it's execute successfully but in real device it's showing error I need to understand the difference between these two's. – debam das Jan 11 '18 at 06:26