As errors could be fatal, error handling is one of the crucial areas for programmers, regardless of the application developed or programming languages used. It will be worse when an error occurs during run-time. It can be as worst as Ariane 5 disaster notably one of the most expensive software…

From Dart 2.7, new method has been implemented called “Extension”. It is a way to add functionality to existing libraries. Why to use extension? Is’nt it better to use your own code rather than using someone else’s apis? By the usage of extension feature we could implement our logic in our…