[Solved] Which of the following is true about instance_eval when called on an object? — Ans: It evaluates code in the context of the object itself, allowing access to its... | Ruby

Ruby - Advanced Metaprogramming

Which of the following is true about instance_eval when called on an object?

AIt changes the class definition of the object's class.

BIt evaluates code in the context of the object itself, allowing access to its private methods and variables.

CIt creates a new instance of the object's class.

DIt only works on classes, not on instances.

Step-by-Step Solution

Solution:

Step 1: Understand instance_eval context
instance_eval runs code inside the context of the specific object, so it can access private methods and instance variables.
Step 2: Clarify what it does not do
It does not change the class itself or create new instances; it works on the object level.
Final Answer:
It evaluates code in the context of the object itself, allowing access to its private methods and variables. -> Option B
Quick Check:
instance_eval = object context [OK]

Quick Trick: instance_eval runs code as if inside the object itself [OK]

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Which of the following is true about instance_eval when called on an object?