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[TarasPidkuimukha]

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[mateacademy-ai-mentor]

Review Summary

Excellent work on implementing your custom sort2 method! I am approving your solution as it correctly meets all the requirements. The bubble sort algorithm is well-implemented and handles both default sorting and a custom compareFunction. For future improvements, consider two points. First, the standard compareFunction for sort should return a number, not a boolean; using String(a).localeCompare(String(b)) is a good alternative. Second, you can optimize the bubble sort by changing the inner loop's condition to j < this.length - 1 - i to avoid re-checking sorted elements. These are just suggestions, not required changes. Keep up the great work!

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[mateacademy-ai-mentor]

The standard compareFunction for Array.prototype.sort is expected to return a number (negative, zero, or positive). Your function currently returns a boolean. While this works in your current implementation due to JavaScript's type coercion (true becomes 1, false becomes 0), it's better practice to adhere to the standard. This makes your code more predictable and reusable. Consider returning a number, for example by using String(a).localeCompare(String(b)).

[mateacademy-ai-mentor]

Your bubble sort implementation is correct. For a performance improvement, you can optimize the inner loop. After each pass of the outer loop, the largest unsorted element is moved to its correct position. Therefore, the inner loop doesn't need to iterate over the elements that are already sorted at the end of the array. You can adjust the inner loop's condition to j < this.length - 1 - i.

[Denys-Kravchuk9988]

Good job!
But I would recommend to apply all comments from AI.

1. Sort function should return numbers (1, 0, -1)
2. Performance fix