Ruby - Metaprogramming Fundamentals
Which of the following is the correct way to access an attribute named
age from an OpenStruct object called person?Which of the following is the correct way to access an attribute named age from an OpenStruct object called person?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recall attribute access in OpenStruct
OpenStruct attributes are accessed like object properties using dot notation, e.g., person.age.Step 2: Evaluate options
person.age uses dot notation correctly. person[:age] uses hash syntax which is invalid. person.get(:age) uses a non-existent method. person->age uses invalid Ruby syntax.Final Answer:
person.age -> Option AQuick Check:
Access OpenStruct attribute = dot notation [OK]
Quick Trick: Use dot notation to access OpenStruct attributes [OK]
Common Mistakes:
- Using hash syntax
- Calling non-existent methods
- Using invalid Ruby operators
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