webpack.config.js

var Encore = require('@symfony/webpack-encore');

Encore
// directory where compiled assets will be stored
    .setOutputPath('public/build/')
    // public path used by the web server to access the output path
    .setPublicPath('/build')
    // only needed for CDN's or sub-directory deploy
    //.setManifestKeyPrefix('build/')

    .addStyleEntry('app', './assets/css/app.css')

    // will require an extra script tag for runtime.js
    // but, you probably want this, unless you're building a single-page app
    .disableSingleRuntimeChunk()

    .cleanupOutputBeforeBuild()
    .enableBuildNotifications()
    .enableSourceMaps(!Encore.isProduction())
    // enables hashed filenames (e.g. app.abc123.css)
    .enableVersioning()

// enables Sass/SCSS support
//.enableSassLoader()

// uncomment if you're having problems with a jQuery plugin
//.autoProvidejQuery()
;

module.exports = Encore.getWebpackConfig();