how to check react install or not code example

Example: How to check the installed version of React-Native

react-native info
//or
ing npm install
-->JargonAprV2 git:(master) x react-native -v
react-native-cli: 0.1.10
react-native : 0.24.1
npm install -g yarn : incase yarn internal or external command	 

npm install -g serve : installing npm globaly
serve -s build 
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npm install -g react-native-cli
react-native init AwesomeProject
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