Discussion on: JavaScript: I have a problem to set the conditions of the beginnings of the loops.

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Replies for: Doesn't line 9 exit the function when the number element is something else than 0? That would be the case on the second click.

So where should I put the line 9?

Perhaps you could just make it broader so it accepts the values 0 and 1.

Yes, I understood it. I would like to know how to do it.

Well, like this for instance:

let currentNumber = document.getElementById('Number').textContent;
if (currentNumber !== '0' && currentNumber !== '1')
  return;

It's not optimal, just for demonstration purposes.