need edge cases tests

Type coercion, x == y will return true or false, +true = 1, +false = 0

Random tests are not similar to edge cases tests

stay DRY to the last breath ☔️

JavaScript

Bad testing, need an edge cases.
One of my solutions was wrong, but there is no test cases for descending array like [3, 2, 1] and wrong solution works

this code is not necessary, bc js type coercion will do all necessary stuff

c[0] < c[2] ? 0 : 1

+true == 1
+false == 0

so all you need is this:

c[0] == c[2]

OMG, I've found that I have not read description to the end.

Not because of coding skills, but because of knowledge of number theory, I mean.

Great Kata, but I think it's too low ranked. It must be 5 or 4, not 6.

Clever, but extremly slow.