1.项目中引入babel,在babel.config.js 配置
module.exports = {
presets: [
['@vue/app', {
useBuiltIns: 'entry',
polyfills: [
'es6.promise',
'es6.symbol'
]
}]
]
}
2.vue.config.js添加
module: {
rules: [
{
test: /\.js$/,
use: {
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env'] // 也可以写成presets:['babel-preset-env']
}
},
exclude: '/node_modules/'
}
]
}
- package.json添加(重要)
"browserslist": [
"last 1 version",
"> 1%",
"IE 10"
]