Building an App That Uses All 7 New JavaScript ES2020 Features

Building an App that uses all seven new features in JavaScript ES2020 features. The unit price calculator app uses vanilla JavaScript for the front end and Node.js with Express.js for the back end. Not all browsers support these features — yet. If you want to start using these features now, make sure you provide appropriate polyfills or use a transpiler like Babel to ensure your code is compatible with older browsers. For each feature, I’ll discuss what it is, how it’s useful, and how I used it.