I don't see any errors in the tests.

That line is part of your code, print the input, try your code with the same input in your IDE.

In the second example, the first four lines each have a leading space. Leading spaces are counted normally, like all other characters. I'm sorry that this fact wasn't made clear enough.

You have to throw something :

https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Statements/throw

Thank you @Chrono79, I had not read the description correctly.

@jesusmanuelir@gmail.com There is no error, your code is wrong. Check the description again.

The error is still occurring

Not a kata issue.

But there is C in that array, which means no extra points

write a function that takes two or more objects

It's stated very clearly. It should take any amount of arguments.

jdfibaecbecgabcacdfacgacjbebajjfbcbchfgjbfibjiegjbeiiaajfa <- length 58
abc
adeadbejicjfgjdadcjfjjfegeiijcfhicfiaidbegdgihdfddhagdhgddb <- length 59

To define CENTER, the number of characters in the sequence to the left and right of the "abc" (which is in the middle) must differ by at most one.

Because string 'abc' is right in the middle of it.

Read this: https://docs.codewars.com/training/troubleshooting#print-input

You're not using the right formula to calculate the area?

What if a1 is None?