webpack.config.js

const path = require('path');

const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackPluginConfig = new HtmlWebpackPlugin({
    template: './src/index.html',
    filename: 'index.html',
    inject: 'body'
});

module.exports = {
    entry: './src/index.js',
    output: {
        path: path.resolve('dist'),
        filename: 'index_bundle.js'
    },
    module: {
        rules: [
            {
                test:/\.(s*)css$/,
                use:['style-loader','css-loader','sass-loader']
            },
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: "babel-loader"
            }, {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                use: "babel-loader"
            },
            {
                test: /\.(png|jpg|gif)$/,
                use: [
                  {
                    loader: 'file-loader',
                    options: {}
                  }
                ]
              }
        ]
    },
    plugins: [HtmlWebpackPluginConfig]

};