Did I get this right (the code running with examples)?

            var randomNumber = getRandomNumber(10);
   // we define a variable which will hold the value of the random number 

    var guess;
   //we define a variable which will hold the answer we get from the user

    var guessCount = 0;
   //we define a variable which will hold the number of times the loop runs

    var correctGuess = false;
  //we define a variable and we set its value to false so we can make the while loop run (I    didn't really understand why do we set this value to false).

    function getRandomNumber (upper) {

        var num = Math.floor(Math.random() * upper) +1;
        return num;


                }
   // the function generates a random  number, let's say 7

                do {

                    guess = prompt("I am thinking of a number between 1 and 10. Take a guess!")
                    guessCount +=1;

   // we ask the user to type a number; let's say the user types 5

                    if(parseInt(guess) === randomNumber) {
                        correctGuess = true; }

   // we check the condition in the if statement. 5 is not equal to 7, therefore correctGuess is false;





                } while(!correctGuess) 

//while correctGuess is false, the code goes back to the "do" block code again and it runs until the user's number is the same with the random number. The random number never changes, unless we reload the page.

            alert("You guessed the number! It took you " + guessCount + " times to guess")

//if the code from the "do" block code is true, the loop stops (the "while" block code never runs if the user guesses the number using his first try) and the alert message is displayed.