Dart is the programming language Google created for building apps with Flutter, and it is the reason one codebase can run on iPhone, Android, and the web. It is a modern, clean language that is easy to read and quick to learn, especially if you already know JavaScript or Java. If you want to build mobile apps and you like the idea of learning one language for every platform, Dart is the place to start.

How does Dart work? You write Dart code in Visual Studio Code or Android Studio, and the Dart compiler turns it into a native app that runs fast on any device. Dart is a strongly typed language with a simple syntax: variables, functions, and classes, with very little ceremony. It supports both just-in-time compilation for fast development — so you see your changes instantly — and ahead-of-time compilation for fast, smooth apps in production. With Flutter, your Dart code describes the interface, and Flutter builds it on every platform.

Dart is a good fit for beginners because it is simple and friendly.…