Question

I am going through Jerry Lee Ford’s book to study basic concepts of powershell and I have an exam coming up. I am however stuck at this for loop

for ($i = 1; $i -le 10; $i++) {
Write-Host $i
}

The way I see it:
$i equals 1 and as long as $i is less than or equal to then it gets upped by 1. So according to me, the end value would be 11 since the moment $i turns 10 it still matches the -le condition. However the end value is 10?

What am I overlooking here?

Answer 1

Let’s run through it:

$i = 1. $i -le 10 is true. Print 1. Increment $i to 2

$i = 2. $i -le 10 is true. Print 2. Increment $i to 3

$i = 3. $i -le 10 is true. Print 3. Increment $i to 4

…

$i = 9. $i -le 10 is true. Print 9. Increment $i to 10

$i = 10. $i -le 10 is true. Print 10. Increment $i to 11

$i = 11. $i -le 10 is false. We stop!!

So you see from 1 to 10.

But if you saw the value of $i outside the loop, you will see that it is indeed 11. But the loop stopped printing at 10.