A reusable and elegant form validation implemented with the observer pattern. This project demonstrates the Observer design pattern using form validation as a use case. The form acts as the subject, ...

In fact, the chief use case for structural pattern matching is to match patterns of types, rather than patterns of values. Python performs matches by going through the list of cases from top to ...

Software reuse has traditionally meant that you literally save code written for one application and use it again in another. But increasingly, companies are seeing the value of reusing precode ...