dart
What is a .dart file?
text/x-dart
Dart (.dart) is a plain-text source file for the Dart language used by Flutter and Dart VM apps. It is object-oriented with sound null safety, async futures/streams, and a concise syntax.
How to use a .dart file
Use an example .dart file to test Dart analyzers, formatters (dart format), Flutter tooling, and syntax highlighters.