I fixed the htmlize function in C#. Also some minor cleanup.

Me too, I don't get it either :(

Agreed. And I'll add that it would also aim to resemble the stated requirements so that the poor maintenance developer need not infer the relationship between the two.

Nobody's going to change kata specifications after 6k+ people solved it.

I can see that but I don't understand how your algorithm work?
你是套用了啥公式呀？

Ignore the "even or odd" guide, start reading the number from the end, instead of the head, you will realise that it is always d, d2, d, d2, .... Whether the actual number has even numbers or not, doesn't matter.

I don't understand this approache. :(

I see nothing in the details about disallowing negative values. Many of the solutions would fail if the values turn negative.

it('should return an object with a valid peak if values are negative',function(){
  Test.assertSimilar(pickPeaks([-2,-1,0,-1,-2]),{pos:[2],peaks:[0]}) 
});