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webpack.config.js
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webpack.config.js
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const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const config = {
entry: [
'react-hot-loader/patch',
'./src/index.js'
],
output: {
path: path.resolve(__dirname, 'dist'),
filename: '[name].[contenthash].js'
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
use: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.scss$/,
use: [
'style-loader',
'css-loader',
'sass-loader'
]
},
{
test: /\.svg$/,
use: 'file-loader'
}
]
},
resolve: {
extensions: [
'.js',
'.jsx'
],
alias: {
'react-dom': '@hot-loader/react-dom'
}
},
devServer: {
contentBase: './dist'
},
plugins: [
new HtmlWebpackPlugin({
appMountId: 'app',
filename: 'index.html'
})
],
optimization: {
runtimeChunk: 'single',
splitChunks: {
cacheGroups: {
vendor: {
test: /[\\/]node_modules[\\/]/,
name: 'vendors',
chunks: 'all'
}
}
}
}
};
module.exports = (env, argv) => {
if (argv.hot) {
// Cannot use 'contenthash' when hot reloading is enabled.
config.output.filename = '[name].[hash].js';
}
return config;
};