Exception class Null safety
A marker interface implemented by all core library exceptions.
An Exception is intended to convey information to the user about a failure, so that the error can be addressed programmatically. It is intended to be caught, and it should contain useful data fields.
Creating instances of Exception directly with
is discouraged in library code since it doesn't give users a precise
type they can catch. It may be reasonable to use instances of this
class in tests or during development.
- hashCode → int
The hash code for this object. [...]
- runtimeType → Type
A representation of the runtime type of the object.
Invocation invocation ) → dynamic
Invoked when a non-existent method or property is accessed. [...]
) → String
Returns a string representation of this object.
Object other ) → bool
The equality operator. [...]