Ruby - Basics and Runtime
You want to document a Ruby method that takes a number and returns its square. Which comment style best describes the method's purpose and input/output?
You want to document a Ruby method that takes a number and returns its square. Which comment style best describes the method's purpose and input/output?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Identify proper Ruby documentation comment style
Ruby uses single-line comments with tags like@paramand@returnto document methods clearly.Step 2: Compare options
# This method squares a number # @param num [Integer] the number to square # @return [Integer] the squared result uses Ruby documentation style. =begin Squares a number Input: num Output: squared number =end uses multi-line comment but lacks tags. Options C and D use invalid comment styles for Ruby.Final Answer:
# This method squares a number # @param num [Integer] the number to square # @return [Integer] the squared result -> Option BQuick Check:
Use # with @param and @return for Ruby docs [OK]
Quick Trick: Use # with @param and @return to document Ruby methods [OK]
Common Mistakes:
MISTAKES- Using multi-line comments without tags for documentation
- Using comment styles from other languages
- Not specifying input/output clearly
Master "Basics and Runtime" in Ruby
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Ruby Quizzes