dart-mirrors – Tarik Billa

How to tell if an object is an instance of a class

June 11, 2023 by Tarik

Recently Object got the runtimeType getter. So now, we may not only compare type of object with another type, but actually get the class name of an object. As in: myObject.runtimeType.toString() Furthermore, in the current version of Dart, you can skip the toString operation and directly compare runtimeType of object with target type: myObject.runtimeType == … Read more

How to perform runtime type checking in Dart?

October 19, 2022 by Tarik

The instanceof-operator is called is in Dart. The spec isn’t exactly friendly to a casual reader, so the best description right now seems to be http://www.dartlang.org/articles/optional-types/. Here’s an example: class Foo { } main() { var foo = new Foo(); if (foo is Foo) { print(“it’s a foo!”); } }