切换npm源的方式

一、使用nrm --NPM registry manager

1、安装nrm

npm install -g nrm

2、查看可选源列表 nrm ls

nrm ls

执行结果

  npm -------- https://registry.npmjs.org/
  yarn ------- https://registry.yarnpkg.com/
  cnpm ------- http://r.cnpmjs.org/
* taobao ----- https://registry.npm.taobao.org/
  nj --------- https://registry.nodejitsu.com/
  npmMirror -- https://skimdb.npmjs.com/registry/
  edunpm ----- http://registry.enpmjs.org/

3、切换源 nrm use

//假如要切换到cnpm
nrm use cnpm

显示结果

Registry has been set to: http://r.cnpmjs.org/

查看切换后的源

  npm -------- https://registry.npmjs.org/
  yarn ------- https://registry.yarnpkg.com/
* cnpm ------- http://r.cnpmjs.org/
  taobao ----- https://registry.npm.taobao.org/
  nj --------- https://registry.nodejitsu.com/
  npmMirror -- https://skimdb.npmjs.com/registry/
  edunpm ----- http://registry.enpmjs.org/

4、测速 nrm test

1）测试某个源的相应时间

nrm test taobao

执行结果

* taobao - 188ms

2）测试所有源的相应时间

nrm test

执行结果

  npm ---- 16132ms
  yarn --- 4662ms
  cnpm --- 1639ms
* taobao - 211ms
  nj ----- Fetch Error
  npmMirror  1920ms
  edunpm - 1446ms

二、使用npm config

1、查看源

npm config get registry

执行结果

https://registry.npm.taobao.org/

2、设置源

npm config set registry https://registry.npm.taobao.org/

三、通过CLI命令指定源

在使用命令式进行下载包时，通过--registry 参数指定源

npm --registry https://registry.npm.taobao.org/ install [package-name]