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webpack.config.js
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webpack.config.js
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const path = require('path')
const { CleanWebpackPlugin } = require('clean-webpack-plugin')
const HTMLWebpackPlugin = require('html-webpack-plugin')
const CopyPlugin = require('copy-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const isProd = process.env.NODE_ENV === 'production'
const isDev = !isProd
const filename = (ext) => (isDev ? `bundle.${ext}` : `bundle.[hash].${ext}`)
const jsLoaders = () => {
const loaders = ['babel-loader']
return loaders
}
module.exports = {
context: path.resolve(__dirname, 'src'),
mode: 'development',
entry: ['@babel/polyfill', './index.js'],
output: {
filename: filename('js'),
path: path.resolve(__dirname, 'dist'),
},
resolve: {
extensions: ['.js'],
},
devtool: isDev ? 'source-map' : false,
devServer: {
port: 3000,
hot: isDev,
},
plugins: [
new CleanWebpackPlugin(),
new HTMLWebpackPlugin({
template: 'index.html',
minify: {
removeComments: isProd,
collapseWhitespace: isProd,
},
}),
new CopyPlugin({
patterns: [
{
from: path.resolve(__dirname, 'src/favicon.ico'),
to: path.resolve(__dirname, 'dist'),
},
],
}),
new MiniCssExtractPlugin({
filename: filename('css'),
}),
],
module: {
rules: [
{
test: /\.s[ac]ss$/i,
use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
},
{
test: /\.m?js$/,
exclude: /node_modules/,
use: jsLoaders(),
},
],
},
}