Today we're going to build and run an ice cream shop and learn asynchronous JavaScript at the same time. Along the way, you'll learn how to use: CallbacksPromisesAsync / AwaitHere's what we'll cover in this article:What is Asynchronous JavaScript?Synchronous vs Asynchronous JavaScriptHow Callbacks Work in JavaScriptHow Promises Work in JavaScriptHow Async / Await Works in JavaScriptSo let's dive i