Install Yarn
brew install yarn
Switch yarn to specific version / latest version (yarn 1.x)
yarn policies set-version <version>
yarn policies set-version
Switch yarn to specific version / latest version (yarn 2.x)
yarn set version <version>
yarn set version latest
Show yarn version and help
yarn -v
yarn help
Show information for a package
yarn info <package>
Show why a package was installed
yarn why <package>
List installed packages (local / global)
yarn list
yarn global list
List only top level global packages
yarn list --depth=0
yarn global list --depth=0
List packages that match pattern
yarn list --pattern <string>
Initialize package config in current folder (-y or --yes for default setup)
yarn init
yarn init --yes
Generate new yarn lock file from installed packages
yarn import
Install all configured package.json dependencies (dev and production)
yarn install
Install new dev (-D), peer (-P), optional (-O) package
yarn add <package>
yarn add <package>@<version>
yarn add <package> --dev
Global packages
yarn global add <package>
Uninstall package (local, dev, global)
yarn remove <package>
yarn remove <package> --dev
yarn global remove <package>
Upgrade packages or specific package (local, global) for current major
yarn upgrade
yarn upgrade <package>
yarn global upgrade <package>
Upgrade packages or specific package to latest version regardless of package.json version ranges
yarn upgrade --latest
yarn upgrade -L
yarn upgrade -L <package>
Show outdated packages where new version exists
yarn outdated
yarn outdated <package>
Run scripts from package.json
yarn run <script-name>
Check configured dependencies match lock file
yarn check
Show location of global packages folder
yarn global bin
Show direction of global cache
yarn cache dir
List all or matching packages in global cache
yarn cache list
yarn cache list --pattern <string>
Clear the global cache
yarn cache clean
Display the current configuration
yarn config list
Set configuration values
yarn config set <key> <value>
Get configuration value
yarn config get <key>
Delete configuration value
yarn config delete <key>