how to run react native app

1npm install -g expo-cli
2

1react-native run-android 
2react-native run-ios

1npm install -g react-native-cli
2
3//cd to the file where your react native projects will be 
4react-native init albums
5
6// Run instructions for  IOS/Android
7cd projects/albums 
8
9npx react-native run-ios
10npx react-native run-android
11

1$ npx react-native init firstapp
2

1react-native start

1// For iOS
2	
3   //Case 1: Run on Simulator
4   npx react-native run-ios
5
6  //Case 2: Choose Scheme
7  npx react-native run-ios --scheme <Scheme Name>
8   
9  // Run on a different simulator, e.g. iPhone SE: 
10  react-native run-ios --simulator "iPhone SE"
11
12  // Pass a non-standard location of iOS directory: 
13  react-native run-ios --project-path "./app/ios"
14
15  // Run on a connected device, e.g. Max's iPhone: 
16  react-native run-ios --device "Max's iPhone"
17
18  
19//For Android
20
21//Case 1: Run on Simulator
22npx react-native run-android
23
24
25//Case 2: Choose varient
26npx react-native run-android --varient <varient name>
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