yarn
Install
Folow the Yarn install docs:
brew install yarn
# Check version
yarn --version
# Check location
which yarn
Reference
Update
brew upgrade yarn
Usage
# Install from lockfile
yarn install
# Upgrade all packages
yarn upgrade
# Upgrade one package
yarn upgrade {packageName}
# Show installed versions of a package
yarn list {packageName}
# Show which dependency requires each version
yarn why {packageName}
# Totally reinstall everything
yarn cache clean
rm -rf node_modules yarn.lock
yarn install