Write a function that accepts an array of 10 integers (between 0 and 9)

but there isnt anything about this in the task, same as if it isnt a number but a letter or symbol. Just do what is asked for nothing more nothing less

That's because you changed the function's name, don't do that:

function digitize(n) {
  //code here
}

That's the initial code. Not a kata issue.