yarn install specific version code example

Example 1: add dev dependency yarn

yarn add -D package
//or
yarn add --dev package

Example 2: yarn add specific version

// for specific versions

yarn add [email protected]

Example 3: yarn react install

There are two ways where you can initiate a REACT app.. 
1. Using npm : npm init react-app 
	 example : npm init react-app sampleApp
2. Using yarn : yarn create react-app 
	 example : yarn create react-app sampleApp

Example 4: yarn install specific version

yarn set version 

Example 5: yarn add --save-exact

yarn add  [--exact/-E]