The Fetch API and async() functions with await are modern JavaScript patterns that aren’t always supported by old browsers, particularly non-Edge IE browsers.

Callbacks work fine for handling asynchronous code in JavaScript, but promises and the async and await keywords are cleaner and more flexible.

Topics covered in the workshop span a wide range of modern JavaScript capabilities, including built-in methods for streamlining code, robust exception handling, variable scope and hoisting, ES6 ...