© 2026 Hashnode
Admit it: You have used a String to model email values, even though most strings aren’t valid emails (don’t worry, we all have!). Imprecise data models are easy, but they crash applications and corrupt external systems. On the other hand, precise dat...

Too often, our applications are dominated by boilerplate that's not fun to write or test, and that makes our business logic complicated. In object-oriented programming, classes and interfaces help us with abstraction to reduce boilerplate. But, in fu...
