^ I see, you were trying to demo how scoping works?

ok, this looks pretty straightforward, what am I missing? :)
x will be incremented by 3 7 times. On the 6th it reaches 18 which is still less than 20, so it runs one more time to reach 21 and then condition breaks out of the loop

Good one! That second line is initializing an array with 5 zeros.
The second arg to CopyTo is the interesting one, I did not know about. It shifts the starting point by 2 and copy start with the third elem, resulting in answer 0,0,1,2,3

Hello WorXd. By default replace method is case sensitive and culture insensitive. Third param can be set to $true to make it case-insensitive. Last param is for culture, so you could have omitted both 3rd and 4th to get the same result. I guess, you wanted to show people what the defaults are?

done

Like…ddos’ing the service