使用了babel-polyfill使用foreach还是会报错呢,基本语法promise应该是不会报错了,但是碰到其他新语法怎么办呢?
```javascript
package的包
{
"name": "webpack-demo1",
"version": "1.0.0",
"description": "",
"private": true,
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "webpack"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"@babel/core": "^7.22.9",
"@babel/preset-env": "^7.22.9",
"babel-loader": "^9.1.3",
"webpack": "^5.88.2",
"webpack-cli": "^5.1.4"
},
"dependencies": {
"@babel/polyfill": "^7.12.1",
"lodash": "^4.17.21"
}
}
webpack.config.js
const path = require('path');
module.exports = {
entry: './src/index.js',
output: {
filename: 'main.js',
path: path.resolve(__dirname, 'dist'),
},
mode:'development',
target: ['web', 'es5'],
module:{
rules:[
{
test:/\.js$/,
exclude:/node_modules/,
use:{
loader:'babel-loader',
options:{
presets:[
[
"@babel/preset-env",
{
useBuiltIns:"usage",
},
]
]
}
}
}
]
}
};