Yarn 用于优化npm

目标是解决上一节中描述的由于语义版本控制而导致的npm安装的不确定性问题

yarn command

yarn init
yarn add package
yarn add global add package //全局安装

yarn install --force
yarn remove [package]
yarn cache clean
yarn upgrade

安装指定版本

  yarn add [package]@[version]

  yarn add --dev [package]@[version]

重新下载所有包

  npm rebuild
  yarn install --force

resolution field in package.json

yarn 支持选择性版本解析，可以通过在package.json 增加resolution 字段自定义程序版本

how to use it?

{
  "name": "project",
  "version": "1.0.0",
  "dependencies": {
    "left-pad": "1.0.0",
    "c": "file:../c-1",
    "d2": "file:../d2-1"
  },
  "resolutions": {
    "d2/left-pad": "1.1.1",
    "c/**/left-pad": "^1.1.2"
  }
}

Then run yarn install.

project deps left-pad 1.0.0 but d2 deps left-pad 1.1.1

nodejs Console

更改 node.js 的控制台字体颜色

console.log('\x1b[36m%s\x1b[0m', 'I am cyan');

//
Reset = "\x1b[0m"
Bright = "\x1b[1m"
Dim = "\x1b[2m"
Underscore = "\x1b[4m"
Blink = "\x1b[5m"
Reverse = "\x1b[7m"
Hidden = "\x1b[8m"

FgBlack = "\x1b[30m"
FgRed = "\x1b[31m"
FgGreen = "\x1b[32m"
FgYellow = "\x1b[33m"
FgBlue = "\x1b[34m"
FgMagenta = "\x1b[35m"
FgCyan = "\x1b[36m"
FgWhite = "\x1b[37m"

BgBlack = "\x1b[40m"
BgRed = "\x1b[41m"
BgGreen = "\x1b[42m"
BgYellow = "\x1b[43m"
BgBlue = "\x1b[44m"
BgMagenta = "\x1b[45m"
BgCyan = "\x1b[46m"
BgWhite = "\x1b[47m"

plugins

npm-run-all

A CLI tool to run multiple npm-scripts in parallel or sequential

npm-run-all
npm-s
npm-p

The main command is npm-run-all. We can make complex plans with npm-run-all command. Both run-s and run-p are shorthand commands. run-s is for sequential, run-p is for parallel. We can make simple plans with those commands.

npx

npx 全局免安装

npx @vue/cli -V

等价于

npm install @vue/cli -g
vue -V

npm view

lookup an module versions list

npm view bootstrap versions

npm config set registry https://registry.npm.taobao.org
cnpm config set registry https://registry.npm.taobao.org
yarn config set registry https://registry.npm.taobao.org
配置后可通过下面方式来验证是否成功 ：
npm config get registry

Yarn

yarn config get registry # 查看当前源
yarn config set registry https://registry.npm.taobao.org  #
yarn config set registry https://registry.yarnpkg.org  # 自带源
npm config set registry https://registry.npmjs.org/

https://classic.yarnpkg.com/en/docs/cli/publish

yarn publish

npm publish npm –force unpublish 包名

https://learnku.com/articles/15976/yarn-accelerate-and-modify-mirror-source-in-china

Front Web Development

Nodejs yarn vs npm