Very well pointed out!

this solution does not cover the following scenario: [0,2,27,-60,57,99,-28,28,-15,7,-16,-63,32,82,-64,-57] expected: [0,2,-60,28]

check function.name

I get these erros:
first handler calls - Expected: 1, instead got: undefined

first handler arguments - Expected: '[1, 2, 3, 'first', undefined, false]', instead got: 'undefined'
I can't understand it because when I log the handler function it shows that its args property has the correct values inside an array and its call property is 1.

Well, you should raise a question instead in this case. Otherwise we're confused too ;-)

Hi,

I didn't mean to imply that there was something wrong with the kata. I was just confused by the random tests. Thanks for the tip about printing the input to the console.

Hi,

First, this is not an issue, this is a question. "Obviously", since 97 people already completed the kata in JS, it's a problem in your code, not in the kata (issues are for the latter case).

About your question, so: yes, there are random tests that your code has to pass. That means your code doesn't handle properly some edge case that appears in the random tests only. You should print the input to the console to debug your code.

Okay, this is strange. I am getting a type error for an undefined object property but each time I run the attempt I pass a different number tests, even without changing the code. Doesn't it always run the same tests? How can I be passing 20 tests in some runs and 0 in others with the same code?

I also can't debug the type-erros since I am not being shown the input that produces it. It passes all the sample tests plus more sample inputs I came up with. I can't see why it would produce the type error.

Any suggestions?

Not an issue

Do I sense some sarcasm?