What is Dart Programming Language?

Dart is a client-optimized[7] programming language for apps on multiple platforms. It is developed by Google and is used to build mobile, desktop, backend and web applications.[8]

Dart is an object-oriented, class defined, garbage-collected language[9] using a C-style syntax that transcompiles optionally into JavaScript. It supports interfaces, mixins, abstract classes, reified generics, static typing, and a sound type system.