webpack.base.config.js

var path = require('path');

module.exports = {
    context: __dirname,

    entry: ['./src/index'],

    output: {
        filename: '[name]-[hash].js'
    },

    plugins: [
    ], // add all common plugins here

    module: {
        rules: [
            {
                test: /\.jsx?$/,
                loader: 'babel-loader',
                include: [path.resolve(__dirname, './src')],
                query: {
                    presets: ['@babel/preset-react'],
                    plugins: [
                        'react-hot-loader/babel',
                        '@babel/plugin-proposal-class-properties'
                    ]
                }
            },
            {
                test: /\.scss$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'sass-loader'
                ]
            },
            {
                test: /\.svg$/,
                use: ['@svgr/webpack']
            }
        ]
    },

    resolve: {
        modules: ['node_modules'],
        extensions: ['.js', '.jsx']
    }
};