Question

Match the context details with the pattern that applies.

Answer 1

Answer:

1. - Observer

2. - iterator

3. - strategy

4. - composite

5. - decorator

Explanation:

An object contains other objects (elements) and must give access to them for clients, without exposing its internal structure. This is an observation.

The subject-object can generate events as an iterable (iterator) and could use different strategic algorithms to achieve a task. Class objects can be used to aggregate other class objects.

In python, the decorator function mimics the outer function of a nested function, but still maintains the functionality of the second function