Design patterns · interview question
In a checkout system, you need to apply multiple discounts. Which pattern helps avoid creating numerous subclasses for each combination of discounts?
Multiple choiceMediumchapter-13-curatedpremiumdesign-patternsdecorator-pattern
Answer and explanation
Correct answer
B. Decorator
Why
The Decorator pattern helps you apply multiple layers of functionality without creating a subclass for each combination. It allows different discount behaviors to be added dynamically.
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