Use of yarn

yarn Official website ： Usage method | Yarn Chinese document

1、yarn install :

npm install --global  yarn

After installation, you can check whether the version is successfully installed :

yarn --version

2、yarn Usage method ：

2-1、 Initialize a new project ：

yarn init

2-2、 Add dependency package ：

yarn add [packagename]
yarn add [packagename]@[version]
yarn add [packagename]@[tag]

#tag:tag It is the label for this version when releasing the package version , In this way, users can directly use the label to install this version of the package , Do not enter the version number

2-3、 Add dependent packages under different dependencies ：

yarn add [packagename] --dev
yarn add [packagename] --peer
yarn add [packagename] --optional

devDependencies Refers to the development environment

peerDependencies It refers to the peer-to-peer dependency environment , Having peer-to-peer dependencies means that your package needs exactly the same dependencies as the person who installed your package

optionalDependencies Is an optional dependency

2-4、 Upgrade dependency package ：

yarn upgrade [packagename]
yarn upgrade [packagename]@[version]
yarn upgrade [packagename]@[tag]

2-5、 Remove dependency package ：

yarn remove [packagename]

2-6、 All dependencies of the installation project ：

yarn
 or 
yarn install