npm install babel-polyfill -D
- main.js引入
import 'babel-polyfill'
- build文件夹下webpack.base.conf.js中修改
entry: { app: ["babel-polyfill", "./src/main.js"] }
- 在.babelrc文件中,找到
env
,添加"useBuiltIns": "entry"
["env", { "modules": false, "useBuiltIns": "entry", //添加此属性 "targets": { "browsers": ["> 1%", "last 2 versions", "not ie <= 8"] } }]