Do/While and While Loops?

The main thing to understand, I think is this: The do while loop is executed at least once so if you'll have code like this:

var isCreate = false;
var count = 0;
while(isCreate){ 
    count ++;
}

the result in varibale count by the end will be 0 but if you will use do while like so

var isCreate = false;
var count = 0;

do { 
    count ++;
}
while (isCreate);

the result for variable count will be 1,

because this loop will execute the code block once, before checking if the condition is true. In general you need to decide by yourself what loop to use, you just need to remember the difference between them.

In this case, the conditional used for the loop isn't important since there are more conditionals being used within, and the only way the loop stops is with the break statement, not with a condition becoming false, so it doesn't make a difference which is used, but of course while is shorter, by a little bit!