yarn install --production code example

Example 1: yarn add install all packages in package,json

yarn install

Example 2: yarn frozen lockfile

yarn install --frozen-lockfile

Example 3: yarn install production only

yarn install --production
# OR
yarn install --production=true
# OR
yarn install --prod

Example 4: install dev dependency yarn

yarn add nameOfPackage --dev

Example 5: yarn install production only

NODE_ENV=production yarn install