Object-oriented programming · interview question
Why is lineTotal() usually a better method on CartItem than one giant procedural utility that takes many separate parameters?
Multiple choiceHardchapter-2-curatedpremiumoopinstance-methods
Answer and explanation
Correct answer
A. Because the object that owns the data can answer the question that naturally belongs to it
Why
When behavior belongs close to the relevant state, the code becomes easier to read and maintain. CartItem.lineTotal() is often clearer than passing product name, unit price, and quantity around as loose values.
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