Left file: appwork-v1_3_1/rails-starter/app/assets/javascripts/application.js  
Right file: appwork-v1_4_0/rails-turbolinks-starter/app/javascript/packs/application.js  
// This is a manifest file that'll be compiled into application.js, which will include all the files <> // This file is automatically compiled by Webpack, along with any other files
// listed below.    
//    
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, or any plugin's   // present in this directory. You're encouraged to place your actual application logic in
// vendor/assets/javascripts directory can be referenced here using a relative path.   // a relevant structure within app/javascript and only use these pack files to reference
    // that code so it'll be compiled.
//    
    require("@rails/ujs").start()
    require("@rails/activestorage").start()
    require("channels")
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the    
    // Include main stylesheet
    require("../source/main.scss")
// compiled file. JavaScript code in this file should be added after the last require_* statement.    
    // Include main file
    require("../source/main")
//    
    // Initialize turbolinks
    require("turbolinks").start()
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details    
    // Uncomment to copy all static images under ../images to the output folder and reference
    // them with the image_pack_tag helper in views (e.g <%= image_pack_tag 'rails.png' %>)
// about supported directives.   // or the `imagePath` JavaScript helper below.
// = //
//= require rails-ujs <>  
//= require activestorage   // const images = require.context('../images', true)
//= require turbolinks   // const imagePath = (name) => images(name, true)
//= require_tree .