[Solved] What will be the output of the following Ruby code?require 'ostruct' person = OpenStruct.new person.age = 30 puts person.age | Ruby

Ruby - Metaprogramming Fundamentals

What will be the output of the following Ruby code?

require 'ostruct'
person = OpenStruct.new
person.age = 30
puts person.age

AError: undefined method 'age='

Bnil

C30

D0

Step-by-Step Solution

Solution:

Step 1: Understand OpenStruct dynamic property assignment
OpenStruct allows adding properties dynamically by assignment, so person.age = 30 sets the age property to 30.
Step 2: Output the property value
Using puts person.age prints the value 30 stored in the age property.
Final Answer:
30 -> Option C
Quick Check:
Dynamic property assignment = 30 [OK]

Quick Trick: Assign properties directly, then access them normally [OK]

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