Why should we prefer to avoid throwing exceptions and using types to our advantage.

Effective Kotlin Item 7: Prefer a nullable or Result result type when the lack of a result is possible

How do we specify requirements and expectations in Kotlin.

Effective Kotlin Item 5: Specify your expectations for arguments and state

What factory functions are and why they are so important patterns for object creation.

Effective Kotlin Item 32: Consider factory functions instead of secondary constructors

Years of OOP made us overuse inheritance. Instead, we should more often use a composition that is safer and more explicit. More often, but not always...

Fabio

Reviewed articles

Effective Kotlin Item 7: Prefer a nullable or Result result type when the lack of a result is possible

Effective Kotlin Item 5: Specify your expectations for arguments and state

Effective Kotlin Item 32: Consider factory functions instead of secondary constructors

Effective Kotlin Item 36: Prefer composition over inheritance