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Why does Ruby guarantee that the ensure block runs even if the program exits early or an exception is raised?

hard📝 Conceptual Q10 of 15
Ruby - Error Handling
Why does Ruby guarantee that the ensure block runs even if the program exits early or an exception is raised?
ABecause ensure is designed to always execute for cleanup tasks
BBecause ensure blocks catch exceptions automatically
CBecause ensure blocks run only if no exceptions occur
DBecause ensure blocks delay program exit until completion
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of ensure

    Ensure blocks are meant to run no matter what, to perform cleanup like closing files or releasing resources.

  2. Step 2: Differentiate from exception handling

    Ensure does not catch exceptions; it just guarantees execution even if exceptions occur or program exits.

  3. Final Answer:

    Because ensure is designed to always execute for cleanup tasks -> Option A

  4. Quick Check:

    Ensure guarantees cleanup execution [OK]
Quick Trick: Ensure always runs to clean up resources [OK]
Common Mistakes:
  • Thinking ensure catches exceptions
  • Believing ensure runs only on success
  • Assuming ensure delays program exit

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