Given two variables a and b referencing nested hashes, how can you check if they are the same object and also have the same content recursively?

hard📝 Application Q9 of 15

Ruby - Classes and Objects

Given two variables a and b referencing nested hashes, how can you check if they are the same object and also have the same content recursively?

Aa.equal?(b) && a == b

Ba == b && a.equal?(b)

Ca.eql?(b) && a.equal?(b)

Da.equal?(b) || a == b

Step-by-Step Solution

Solution:

Step 1: Understand recursive content equality
== checks content recursively for hashes, while equal? checks object identity.
Step 2: Combine checks logically
Both must be true, so use &&. Order does not affect result but conventionally identity first is clearer.
Final Answer:
a.equal?(b) && a == b -> Option A
Quick Check:
Check identity and recursive equality with && [OK]

Quick Trick: Use equal? and == combined with && for nested objects [OK]

Common Mistakes:

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