webpack.config.js

const CopyWebpackPlugin = require('copy-webpack-plugin');
const webpack = require('webpack');
const path = require('path');
const { VueLoaderPlugin } = require('vue-loader')

module.exports = {
    mode: 'development',
    entry: './src/app.js',
    output: {
        filename: '[name].bundle.js',
        path: path.resolve(__dirname, 'dist')
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/
            },
            { test: /\.vue$/, loader: 'vue-loader' },
            { test: /\.vue\.html$/, loader: 'vue-loader' },
            {
                test: /\.(png|jpg|gif)$/i,
                use: [
                  {
                    loader: 'url-loader',
                    options: {
                      limit: 8192,
                      esModule: false,
                    }                    
                  }
                ]
            }
        ]
    },
    devServer: {
        contentBase: './dist',
        overlay: true,
        hot: true        
    },
    plugins: [
        new CopyWebpackPlugin({
            patterns: ['index.html']
        }),
        new webpack.HotModuleReplacementPlugin(),
        new VueLoaderPlugin()
    ],
    resolve: {
        mainFields: ['browser', 'main', 'module'],
        alias: {
          vue$: "vue/dist/vue.runtime.esm.js",
        },
        extensions: ["*", ".js", ".vue", ".json"],
    }
};