[Solved] Why is it recommended to raise errors inheriting from StandardError instead of Exception in Ruby? — Ans: Because rescue without arguments only catches StandardError and its subclasses | Ruby

Ruby - Error Handling

Why is it recommended to raise errors inheriting from StandardError instead of Exception in Ruby?

ABecause Exception is not a valid error class

BBecause rescue without arguments only catches StandardError and its subclasses

CBecause StandardError errors are faster to raise

DBecause Exception errors cannot have messages

Step-by-Step Solution

Solution:

Step 1: Understand Ruby's rescue behavior
By default, rescue catches only StandardError and its subclasses, not all Exceptions.
Step 2: Reason why inheriting StandardError is preferred
Raising errors inheriting from StandardError ensures they are caught by normal rescue blocks.
Final Answer:
Because rescue without arguments only catches StandardError and its subclasses -> Option B
Quick Check:
Rescue catches StandardError subclasses = B [OK]

Quick Trick: Rescue catches StandardError, not all Exception subclasses [OK]

Common Mistakes:

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Why is it recommended to raise errors inheriting from StandardError instead of Exception in Ruby?