Ruby - Regular Expressions
How can you use Ruby regex to replace all sequences of whitespace with a single space in a string?
How can you use Ruby regex to replace all sequences of whitespace with a single space in a string?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Identify regex for whitespace sequences
The pattern \s+ matches one or more whitespace characters.Step 2: Use gsub to replace matches
gsub replaces all occurrences of the pattern with the given string, here a single space.Final Answer:
text.gsub(/\s+/, ' ') -> Option CQuick Check:
Use gsub with regex to replace patterns [OK]
Quick Trick: Use gsub(/\s+/, ' ') to normalize whitespace [OK]
Common Mistakes:
- Using scan or match for replacement
- Using split incorrectly with replacement
- Not using + quantifier in regex
Master "Regular Expressions" in Ruby
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