Ruby - Methods
Which method name follows Ruby convention for a method that returns a boolean value?
? is used at the end of method names that return true or false.Which method name follows Ruby convention for a method that returns a boolean value?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the meaning of
In Ruby, methods ending with?suffix?return true or false, indicating a boolean check.Step 2: Identify the method that returns a boolean
Among the options,valid?clearly suggests a boolean check, while others do not.Final Answer:
valid? -> Option DQuick Check:
Boolean methods end with ? = valid? [OK]
Quick Trick: Boolean methods end with ? to show true/false result [OK]
Common Mistakes:
MISTAKES- Confusing ! with ? suffix
- Using ? for methods that modify objects
- Not using ? for boolean-returning methods
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