yarn install dev dependencies code example

Example 1: add dev dependency yarn

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

Example 2: yarn add install all packages in package,json

yarn install

Example 3: yarn save dev

yarn add <package...> [--dev/-D]

Example 4: yarn add to dev dependencies

yarn add --dev <PACKAGE_NAME>

Example 5: install dev dependency yarn

yarn add nameOfPackage --dev