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but I know the basics of the language very well !!!!! I'm the author of the solution
What on earth is "non-character number"? O_o
It is your mistake - writing code without having basic knowledge about the language, such as the fact that the maximum number you can represent accurately in JS is
2**53 - 1. And oh how much I hope you didn't upvote this solution because its author found a workaround for his ignorance...Yeah, I think it's a problem with javascript as a whole and I found this as a simplest way to handle this issue
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okay. so a couple of problems with this code, although it tests good. Your code doesnt return null when there is a non-character number, it doesnt take into account if the last index of the array is 9 when it is greater than 17 in length. this is the same problem i have been having with this kata. but overall it is good, i think it is a problem with javascript as a whole. I spent hours trying to figure this issue out, and without going about it another way without parsing or using Number() i dunno. But I did use your code as reference. Im just gonna move on cuz this kata is killing me.