Wanted to say this is complex solution, but it is probably one of more performant out there. I see others doing sort (which is expensive) - also me, but also stringifying array later which is even worse and more expensive operation.

One of the least performant solutions but still nice looking :)

Dont repeat yourself :)

This one is probably shortest but it's really expensive for computer as we are building array & string on each iteration.

same issue here :( seems like it was issue with modificating array with reverse function

damn :) true... it just evokes that it want's to go through all of them.

no need to go through every item, it's better enough to find first which do not fit - eg. with function Array.prototype.find

Oh so my try of Katas and firstone is broken? should be most easiest :o