Ruby - Regular Expressions
What will be the output of this Ruby code?
result = "test123" =~ /\D+/ puts result
What will be the output of this Ruby code?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the regex pattern
/\D+/matches one or more non-digit characters.Step 2: Find first non-digit match in "test123"
The substring "test" at index 0 matches the pattern.Final Answer:
0 -> Option AQuick Check:
Non-digit match starts at index 0 [OK]
Quick Trick: \D+ matches non-digits starting at index 0 [OK]
Common Mistakes:
- Expecting index 4 where digits start
- Confusing \D with \d
- Expecting nil if digits exist
Master "Regular Expressions" in Ruby
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