【NPM解决方案】npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage
Administrator@GuoXinYu MINGW64 /d $ npm install -g vuepress npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3. D:\nodejs\npm-global\vuepress -> D:\nodejs\npm-global\node_modules\vuepress\cli.js
Git bash 全局安装Vuepress时【npm install -g vuepress】报的一个npm WARN
解决方案：
npm install --save -g core-js@^3 Administrator@GuoXinYu MINGW64 /d $ npm install --save -g core-js@^3 > core-js@3.6.4 postinstall D:\nodejs\npm-global\node_modules\core-js > node -e "try{require('./postinstall')}catch(e){}" + core-js@3.6.4 added 1 package in 1.706s
网上有些人写的方案不好，他们没有加-g，这样你安装的node_modules就直接被装在当前目录了，直接装在了D盘下，很不好看。
应该开启全局安装，这样方便整理一点。如图：
npm install --save -g core-js@^3
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