Ruby - Regular Expressions
Which of the following is the correct syntax to replace all whitespace characters in a string with underscores using
gsub and regex?Which of the following is the correct syntax to replace all whitespace characters in a string with underscores using gsub and regex?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand regex for whitespace
The regex/\s/matches any whitespace character including spaces.Step 2: Use
Syntax requires regex delimitersgsubwith regex pattern//around the pattern.Final Answer:
str.gsub(/\s/, "_") -> Option DQuick Check:
Replace spaces with underscores using /\s/ regex [OK]
Quick Trick: Use /\s/ to match any whitespace in regex [OK]
Common Mistakes:
- Using string instead of regex for pattern
- Missing regex delimiters //
- Using escaped string instead of regex
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