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webpack.config.js
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webpack.config.js
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const path = require('path');
const HTMLWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
module.exports = {
entry: './src/main.ts',
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'bundle.js',
// 提升兼容性
environment: {
arrowFunction: false,
const: false,
},
},
// Webpack 打包时要用的模块
module: {
// 加载规则
rules: [
{
// 规则生效范围
test: /\.ts$/,
// 指定 loader
use: [
{
loader: 'babel-loader',
options: {
presets: [
[
// 插件环境
'@babel/preset-env',
{
targets: {
'chrome': '58',
'ie': '11',
},
// corejs 版本
'corejs': '3',
// 使用 corejs 方式, usage表示 按需加载
'useBuiltIns': 'usage',
},
],
],
},
},
'ts-loader',
],
exclude: '/node-modules',
},
// 指定 less 文件处理方式
{
test: /\.less$/,
use: [
'style-loader',
'css-loader',
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: [
[
'postcss-preset-env',
{
browsers: 'last 2 versions',
},
],
],
},
},
},
'less-loader',
],
},
],
},
// Webpack 插件
plugins: [
new CleanWebpackPlugin(),
new HTMLWebpackPlugin({
template: 'src/index.html',
}),
],
// 查找 ts 导入 ts
resolve: {
extensions: ['.ts', '...'],
},
// mode: 'development',
mode: 'production',
};