15
Q:

yarn install specific version

yarn add -D package
//or
yarn add --dev package
7
// for specific versions

yarn add [email protected]
0
There are two ways where you can initiate a REACT app.. 
1. Using npm : npm init react-app <app_name>
	 example : npm init react-app sampleApp
2. Using yarn : yarn create react-app <app_name>
	 example : yarn create react-app sampleApp

0
yarn set version <version>
0
yarn add <package...> [--exact/-E]
-1

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