No need to overcomplicate the task. U r given a straightforward task which presumes an array of only positive integers

I was going to use .reduce as well but this seems more efficient to me.

Not bad but I think the idea is to create Adam and Eve inside the create method

i think this more clever solution than top with spread operator.
with spread operator and reduce, we go through array twice.

I guess. I just have to read more about Set!

He creates a Set from values argument to remove dupliactes. Set return something like that 'Set(3) { 4, 7, 5 }'. Then he makes a copy of the array to convert Set into a normal array => [4,7,5].

Hope it helps u)

Is there a specific reason why you created a copy of the array in that format and not 'let arr = [...values]'.

Or is that not what line 2 is doing?