Category: Dart Advance Topics

Dart package is the collection of a well-organized, independent, and reusable code unit. Applications might be needed to implement third-party libraries or packages. The package generally contains a set of classes, functions, or unit of code for specific tasks along with the compiled program and sample data. Dart provides an extensive set of default packages…

Dart Generics are the same as the Dart collections, which are used to store the homogenous data. As we discussed in the Dart features, it is an optionally typed language. By default, Dart Collections are the heterogeneous type. In other words, a single Dart collection can hold the values of several data types. However, a Dart…

Dart doesn’t support the array to store the data, unlike the other programming language. We can use the Dart collection in place of array data structure. We can enable the other classes of the collection in our Dart script by using the dart::core library. Dart collection can be classified as follows. Dart Collection Description List…

The Dart Metadata is used to specify the Dart program with additional information. It usually starts with @ symbol, followed by either a reference of the compile-time constant or a call to a constant constructor. Creating Metadata Annotation In Dart, we can define our own metadata annotations. Let’s understand the following example – Example –…

In Dart, the typedef is used to generate an alias for function type that we can use it as type annotation for declaring variables and return types of that function type. An alias of function type can be used as type annotation in variable declaration or function return type. A typedef stores the type information…

Dart Exceptions are the run-time error. It is raised when the program gets execution. The program doesn’t report the error at compile time when the program runs internally and if Dart compiler found something not appropriate. Then, it reports run-time error and the execution of program is terminated abnormally. This type of error is called…