Ruby - Metaprogramming Fundamentals
Which method is usually paired with respond_to_missing? to handle undefined method calls?
Which method is usually paired with respond_to_missing? to handle undefined method calls?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the method that handles undefined calls
Themethod_missingmethod is called when an object receives a method call it does not know.Step 2: Understand the role of respond_to_missing?
To keeprespond_to?consistent,respond_to_missing?is defined alongsidemethod_missing.Final Answer:
method_missing -> Option DQuick Check:
method_missing pairs with respond_to_missing? [OK]
Quick Trick: method_missing handles calls, respond_to_missing? says if handled [OK]
Common Mistakes:
- Choosing define_method which defines methods, not handles missing
- Confusing send with method_missing
- Thinking respond_to? handles missing methods
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