Pattern: Casting nullable to non-nullable type
Issue: -
Don't cast a nullable value to a non-nullable type. This hides a null check and most of the time it is not what is expected.
Example of incorrect code:
class A {}
class B extends A {}
A? a;
var v = a as B;
var v = a as A;Example of correct code:
class A {}
class B extends A {}
A? a;
var v = a! as B;
var v = a!;