The assert keyword is used when debugging code . The assert keyword lets you test if a condition in your code returns True, if not, the program will raise an AssertionError. You can write a message to be written if the code returns False, check the example below.
Read moreWhat is the difference between extends and with in Dart?
You use extend if you want to create a more specific version of a class . For example the class car could extend the class vehicle. In Dart a class can only extend one class.
Read moreWhat does Extends do in flutter?
You can inherit from or extend a class using the extends keyword. This allows you share properties and methods between classes that are similar, but not exactly the same . Also, it allows different subtypes to share a common runtime type so that static analysis doesn’t fail.
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