A tour of the Dart language
This page shows you how to use each major Dart feature, from variables and operators to classes and libraries, with the assumption that you already know how to program in another language. For a briefer, less complete introduction to the language, see the language samples page.
To learn more about Dart’s core libraries, see the library tour. Whenever you want more details about a language feature, consult the Dart language specification.
This page uses embedded DartPads to display some of the examples. If you see empty boxes instead of DartPads, go to the DartPad troubleshooting page.
Everything you can place in a variable is an object, and every object is an instance of a class. Even numbers, functions, and null are objects. With the exception of null (if you enable sound null safety), all objects inherit from the Object class.
Although Dart is strongly typed, type annotations are optional because Dart can infer types. In the code above, number is inferred to be of type int.
