[Solved] Which of the following best describes attr_accessor in Ruby? — Ans: Creates both getter and setter methods for an instance variable. | Ruby

Ruby - Classes and Objects

Which of the following best describes attr_accessor in Ruby?

ACreates both getter and setter methods for an instance variable.

BCreates only a setter method for an instance variable.

CCreates a method to delete an instance variable.

DCreates only a getter method for an instance variable.

Step-by-Step Solution

Solution:

Step 1: Recall attr_accessor purpose
attr_accessor creates both getter and setter methods, allowing reading and writing of instance variables.
Step 2: Compare with attr_reader and attr_writer
attr_reader creates only getter, attr_writer only setter, attr_accessor does both.
Final Answer:
Creates both getter and setter methods for an instance variable. -> Option A
Quick Check:
attr_accessor = getter + setter [OK]

Quick Trick: attr_accessor gives read and write access [OK]

Common Mistakes:

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Which of the following best describes attr_accessor in Ruby?