使用Homebrew安装yarn 如果不熟悉Homebrew,请查看
brew install yarn
如果你使用nvm来管理node版本的话,使用以后命令安装
brew install yarn --without-node
yarn init
yarn add [package]
yarn add [package]@[version]
yarn add [package]@[tag]
yarn add [package] --dev
yarn add [package] --peer
yarn add [package] --optional
yarn upgrade [package]
yarn upgrade [package]@[version]
yarn upgrade [package]@[tag]
yarn remove [package]
yarn install
# 或者
yarn