QQs'Note
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yarn

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install packages:

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yarn

execuate project
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yarn [YourScriptInPackageJSON]

yarn 和 npm

  • yarn 速度更快（并行和离线缓存）
  • lock 版本 （与package-lock.json）

yarn.lock

  • 如package-lock.json 开发过程中不应删除重建 应当及时提交
  • yarn 过程根据yarn.lock的依赖树安装及拷贝package 且对与package.json不一致的依赖进行更新
  • 使用 yarn upgrade 根据package.json对依赖进行升级 并更新yarn.lock

yarn 和 yarn install

yarn install is used to install all dependencies for a project. This is most commonly used when you have just checked out code for a project, or when another developer on the project has added a new dependency that you need to pick up.
If you are used to using npm you might be expecting to use —save or —save-dev. These have been replaced by yarn add and yarn add —dev. For more information, see the yarn add documentation.

Running yarn with no command will run yarn install, passing through any provided flags.

查看包版本 yarn info xxpkg
yarn list xxpkg —depth=0

从私有Repository安装

配置.yarnrc.yml 即yarn resouce configure

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npmRegistries:
  //qqstone.jfrog.io/artifactory/api/npm/Viewer/:
    npmAlwaysAuth: true
    npmAuthIdent: c2hpLnFpdUAlbnZpc3RhY28uY236QUtDcDhuSER6YWo3NDNIekNDOVRxOW1Kb0tGVHVaKU5yZ2N4aU5jaWVRQ0hEb2tNR0ROTE43TGkybV5aRkVzSkxkUzdMYkDudA==

npmScopes:
  qqsjfrog:
    npmRegistryServer: "https://qqstone.jfrog.io/artifactory/api/npm/Viewer/"

TroubleShooting

  1. cannot be loaded because running scripts is disabled on this system.

  1. Error: This tool requires a Node version compatible with >=18.12.0

    Yarn v4要求nodejs >=18.12.0

    切换Yarn version的命令是 yarn set version 3.0.2
    但是在v4且node imcompatible的情况下任何yarn命令均失效

    只有npm i -g yarn 并没有npm i -g yarn@3 因此使用nvm切到node18再复原是较好的办法

  2. YN0028: The lockfile would have been modified by this install, which is explicitly forbidden.

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    yarn install --frozen-lockfile false

    see Github issue

  3. Error: Your application tried to access XXX but it isn’t declared in your dependencies; this makes the require call ambiguous and unsound
    疑因使用nvm导致存在冲突的yarn cache路径,导致程序并没有按yarn.lock确定所需的依赖包，该问题在卸载nvm，删除%USERPROFILE%\AppData\Local\Yarn\Berry文件并重装nodejs后解决