Q&A

1. What are the benefits of combining design patterns?

   When you combine design patterns, you generally want to use the best traits of each pattern. For example, you may leverage the Singleton pattern with any other pattern that needs to exist only once in the application life cycle. In other cases, you want to leverage their similarities, for example, with the Observer and Mediator patterns.

2. What is the difference between the Omit and Pick utility types?

   Omit<U, T> lets you pick all properties from the existing type U and then remove the specified keys of type T. It will create a new type consisting of omitted properties T from type U.

   Pick<U, T>, on the other hand, does the opposite. You specify the parameters you want to extract from type U without checking for any relationship with type T. It will create a new type consisting of the selected properties T of type U.

3. How is DRY different from SOLID?

   Both are basic engineering principles. With DRY, you avoid...