Added solution to the task

[YevheniiKa]

• Added solution to the task

[mateacademy-ai-mentor]

Review Summary

Great work on this task! Your test correctly validates the primary functionality of the restoreNames function, handling both missing and undefined firstName properties as required. I am approving your solution because it meets all the core requirements.

To make your test suite even more robust, I'd encourage you to consider adding a few more test cases for edge scenarios in the future. For example, you could test:

• What happens if a user object already has a valid firstName.
• How the function handles an empty users array.
• How it handles a mixed array of users where some need updates and others don't.

These additions would ensure your function is thoroughly tested against various inputs. Keep up the excellent work!

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