#dart
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What is Stateless Widget ? Flutter Stateless widgets are those components that describe a part of the user interface which can be determined only by...
What is Scaffold ? A Scaffold Widget provides a framework which implements the basic material design visual layout structure of the flutter app. It...
Typedef Keyword : In Dart, the typedef is used to generate an alias for function type that we can use it as type annotation for declaring variables...
Assert Statement : During development, use an assert statement— assert(<condition>, <optionalMessage>); —to disrupt normal execution if a boolean...
Throw Keyword : The throw keyword is used to explicitly raise an exception. A raised exception should be handled to prevent the program from exiting...
Finally clause : To ensure that some code runs whether or not an exception is thrown, use a finally clause. If no catch clause matches the exception,...