Flutter foundation

foundation library. Core Flutter framework primitives. The features defined in this library are the lowest-level utility classes and functions used by all the other layers of the Flutter framework.26 May 2018

Flutter provides http package to consume HTTP resources. http is a Future-based library and uses await and async features. It provides many high level methods and simplifies the development of REST based mobile applications.

kIsWeb top-level constant Null safety bool const kIsWeb. A constant that is true if the application was compiled to run on the web . This implementation takes advantage of the fact that JavaScript does not support integers. In this environment, Dart’s doubles and ints are backed by the same kind of object.