Very nice. Not unique values, but realy nice!

This is nice and simple solution. But it does not guarantee uniqueness of values.
А card like ['B1', 'B1', 'B1' ... ] will not look good.

This is a nice brute force implementation.

But I would write
array=[Math.min(...temp),Math.max(...temp)];
instead of "array = temp"

otherwise, the array might be TOO large.