Ruby - Regular Expressions
Which of the following is the correct syntax to replace all digits in a string with "#" using
gsub and regex in Ruby?Which of the following is the correct syntax to replace all digits in a string with "#" using gsub and regex in Ruby?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify regex syntax in Ruby
Regex patterns in Ruby are enclosed in slashes, like/pattern/.Step 2: Match digits correctly
The regex/\d/matches any digit character. Using it withgsubreplaces all digits.Final Answer:
string.gsub(/\d/, "#") -> Option CQuick Check:
Regex in slashes + \d for digits = string.gsub(/\d/, "#") [OK]
Quick Trick: Use slashes / / for regex, not quotes " " [OK]
Common Mistakes:
- Using quotes instead of slashes for regex
- Using wrong regex like /d/ instead of /\d/
- Not escaping backslash properly
Master "Regular Expressions" in Ruby
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