yes it is

yup those are problems, I'm going to unpublish it in the meantime and address these flaws

There are different problems with this kata, don't know why there's one (not authors?) solution:-)? For me your example shows that i swapped rows with columns - maybe my missunderstanding or/and a problem of the description. After correction there's a new point: The sequence of the expected result, i can sort on different ways, but there's always a difference...? And sometimes i find more entries (perhaps @Unnamed's explanation, haven't looked for more details - i think it's your task to look for). The description isn't complete in some points too...

me: 400ms Passed: 4 Failed: 5 Errors: 1
Test Results:
 Basic Tests
 retruns a string
 returns top three in order of popularity
 works when there is only one top product
 returns an empty string when there are no sales
Completed in 9ms
 Random Tests:
 passes with randomly generated data
Expected: 'Savannah Smiles, Trios, Lemonades', instead got: 'Trios, Savannah Smiles, Lemonades, Caramel deLites, Girl Scout Smores, Thin Mints'
Completed in 1ms
 passes with randomly generated data
Expected: 'Shortbread, Girl Scout Smores, Thanks-A-Lot', instead got: 'Girl Scout Smores, Shortbread, Thanks-A-Lot, Caramel deLites, Lemonades, Peanut Butter Sandwich'
 passes with randomly generated data
Expected: 'Peanut Butter Sandwich, Shortbread, Caramel deLites', instead got: 'Shortbread, Peanut Butter Sandwich, Caramel deLites'
 passes with randomly generated data
Expected: 'Thanks-A-Lot, Savannah Smiles, Lemonades', instead got: 'Thanks-A-Lot, Savannah Smiles, Lemonades, Peanut Butter Patties, Peanut Butter Sandwich'
Completed in 1ms
 passes with randomly generated data
Expected: 'Girl Scout Smores, Peanut Butter Patties, Thin Mints', instead got: 'Thin Mints, Girl Scout Smores, Peanut Butter Patties, Lemonades, Peanut Butter Sandwich'
Completed in 16ms

The grid described isn't contiguous, there's a hole from 40.09 to 40.10 an so on. There's another problem though. Is the boundary the decimal 40.10 or the value represented by the literal 40.10 in JS? As the numbers are in binary, they can't be equal to these decimal fractions.

Hi, thank you for beta testing. The grid seems to be confusing everybody including me. According to my system zone 25 would return all sales in coordinates [40.20,40.29] [-90.60,-90.51]

row 1 [40.00, 40.09] zone(1,10)
row 2 [40.10, 40.19] zone(11,20)
row 3 [40.20, 40.29] zone(21,30)
  
column 1 [-91.00,-90.91] zones 1,11,21 etc..
column 2 [-90.90,-90.81] zones 2,12,22, etc..
column 3 [-90.80,-90.71]  
column 4 [-90.70,-90.61]  
column 5 [-90.60,-90.51] zones 5,15,25 etc...

perhaps I could make it clearer by including a diagram?

I think there shouldn't be tests with coordinates excatly on zone boundaries. It's not a strict mathematical problem and IRL the probability of it happening would be close to 0 and no one would care which zone it would be.

thanks for the tips

only went to the 2nd decimal place

Then it will make no ambiguity

edit the description to use that

Better not because not every knows what it is

Good point, that is a problem. Perhaps it would make more sense if the data I provided only went to the 2nd decimal place?
I was not familiar with [) I'll edit the description to use that
I considered having it so that the max and min longitude and latitude would be different every time as well as the range between them which would leave it up to the solver to determine the boundries of each grid square. I think that would make the problem more involved than it really needs to be though.

It still very strange that according to your system

{ type: 'Peanut Butter Sandwich',
  quantity: 3,
  scoutId: 87,
  saleId: 24,
  lat: 40.107,
  lon: -90.905 }

belong to no area because -90.905 is not in [-91.00,-90.91] or [-90.90,-90.81]. i.e. All points in (-90.91,-90.90) are missing a relative area.
Though i am fine with it. o_O

Also it seems that you are not familar with this([)) notation.
[Interval](https://en.wikipedia.org/wiki/Interval_(mathematics%29)

My sample test cases were wrong. They applied to an older version of the data which I replaced. I also changed the lat, lon description so it is hopefully more clear now.
zone 91 would be lat 41.90,41.99 lon -91.00,-90.91, when you hit lon -90.90 you are in the second column of the grid. The Kata is live again now and If you want to give it a try!

hi, thanks for giving it a try
I think I might have mixed up latitude and longitude somewhere in the solution or test. Zone 91 should be the 10th row from bottom and first square in the row.
I may have a problem with my solution or test, will check tomorrow and unpublish in the meantime.
First time posting a Kata for me

Maybe i am doing wrong?
For zone 91, the range would be lat[40.90,41.00), lon[-91.00,-90.90)
But i can only find Peanut Butter Patties instead of Lemonades, Trios by preloaded data.
i.e.

{ type: 'Peanut Butter Patties',
quantity: 5,
scoutId: 67,
saleId: 95,
lat: 40.956,
lon: -90.904 },

I enjoyed this Kata. I thought it was more interesting than most. I actually found it somewhat difficult for a 6. There are 4kyus that I've been able to solve more quickly than this. Anyone else think so?