Solution

[Natalia-Onufrienko]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Your solution is approved because it correctly implements all the required behaviors for formatDate and matches the described checklist items. The function accepts the correct three parameters (date, fromFormat, toFormat) and uses the separator from the last element of each format array to split and reassemble the date, so changing separators works as intended [CHECKLIST ITEM #4]. You correctly map parts from fromFormat to toFormat, ensuring the date components are reordered properly and the function returns the expected output string [CHECKLIST ITEM #3, #5]. The year conversion logic is implemented in both directions: YYYY to YY using the last two digits, and YY to YYYY using 20YY when YY < 30 and 19YY otherwise, which satisfies the specified rules [CHECKLIST ITEM #6–#9]. As required, there is no extra validation logic; the function assumes correctly formatted input and directly uses splitting and mapping based on the given formats [CHECKLIST ITEM #10–#12]. A minor non-blocking improvement would be to use more descriptive variable names (e.g., formatMap instead of map) to make the code even easier to read, but this is not necessary for correctness. Overall, you met all functional requirements cleanly—nice work on implementing a clear, flexible date formatting utility.

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