Why is this rated so highly? This solution modifies input to then return a result, which is awful.

same :)

What he is saying is that the function is mutating the original signature array.
You should make a copy of the signature array. You can do that with const aryintSignature_Copy = [...signature];

Wow, such a clever sollution!
I was breaking my head on excluding those 'edge cases' (n =< signature.length) from the loop.

What would be a good practice to eliminate overcomplification?
Is it to write all possible inputs and outputs in 1 overview to spot the most efficient pattern?

But thnx, this was a great lesson.

for sake of learning, why is using slice not a good practice?

for sake of learning, why is this the worst solution?

beutifull
i was doing mind gymnastics but this is just wow

Dayum.

Nice

great solution

This is a great solution! I learned a lot from everyones commentary and by looking at your solution. I learned that you can grab the other two values from the array by doing i+1 and i+2 and after you add all 3 values that new value gets added as the 4th element and then on your second iteration i is going to be the second value and then you add those three values together and it becomes the 5th element. After your completely done with the array, you can create a new copy of the array with the slice method.

Why this is the top rated solution? We polluting argument here. It is the worst one.

awesome man ....very intelligent

it also looks cooler