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# Do While Loop Quiz Question

During one of the quizzes for Stage 1: Simplify Repetitive tasks with Loops, it asks for the person to complete a do while loop to make "I love JavaScript" print to the console 10 times. Here's the code:

```var x=0;
do {
console.log('I love JavaScript');
x += 1;
} while (x <= ____ )
```

Why wouldn't the answer for that blank be 10?

## 5 Answers

It starts counting from zero and is testing for when x is less than or equal to something , so reaching 10 would be the eleventh test.

The whole loop must run at least once, so to make it run ten times, halt execution when x equals 9

Argg, I was thinking about counting in base 10 again vs. remembering that the count starts at 0 and the 10th loop would be 9!

So the final line of code will be: } while (x <= 9) This is 9 because counting in computer programming starts from: 0 1 2 3 4 5 6 7 8 9 These are 10 numbers, so 9 will be present in the statement. Thank you.

Yep - correct.

Steve.

Upvoted.

Is there a reason document.write isn't allowed in this?

I used the same loop, except

for(i=2; i<25, i+=2){ document.write(i) }

and it was a no-no. :(

Hi Justin,

If you want to write to the web page itself, then use `document.write` - here, we were asked to output to the `console`, which wouldn't be visible on the web page.

Steve.

Ha! It's so obvious now. Just have to start counting like a computer programmer.

Glad to help! Keep going and if you have any questions, just post in the Community pages. There is always help available.

Steve.