It is a package manager for the code, using yarn we can share code with other developers, it does quickly, securily, and it is reliable.
Update yarn to latest version
yarn set version stable
Accession the list of yarm commands
yarn help
Starting new project
yarn init
Installing all dependencies
yarn install
Adding new dependencies
yarn add [package_name]
yarn add [package_name]@[version]
yarn add [package]@[tag]
Adding dependency to different categories
yarn add [package_name] --dev
yarn add [package_name] --peer
Upgrading a dependency
yarn up [package_name]
yarn up [package_name]@[version]
yarn up [package_name]@[tag]
Remove a dependency
yarn remove [package_name]