Ruby - Error Handling
What is the output of this Ruby code?
value = Integer('abc') rescue 'error'
puts valueWhat is the output of this Ruby code?
medium📝 Predict Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Integer conversion with invalid string
CallingInteger('abc')raises an ArgumentError because 'abc' is not a valid number.Step 2: Apply rescue modifier
The rescue modifier catches this error and returns the string 'error' instead of crashing.Final Answer:
error -> Option BQuick Check:
Invalid Integer conversion rescued to 'error' [OK]
Quick Trick: Rescue returns fallback when conversion fails [OK]
Common Mistakes:
- Expecting the original string as output
- Thinking rescue returns nil by default
- Assuming code raises exception without rescue
Master "Error Handling" in Ruby
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