How can I get random numbers from this code?

Question

This script is suppose to create a random number but it returns the same number everytime it is ran.

var roll = 0;
var dice = Math.floor(Math.random() * 10) + 1;

loop:
do {
roll = prompt("Guess the magic number!");

if (roll == dice)
{
alert("You win! " + dice + " is the magic number.");
}else if (roll === '' || isNaN(roll)) {
alert ("Please enter a number");
}else if (roll === null) {
alert ("Cancelling Game...Goodbye!") ;
break;
}
else
{
alert("You lose! " + dice + " is the magic number.");
}

}while (roll !== 1);

Answer 1

This:

var dice = Math.floor(Math.random() * 10) + 1;

should be placed inside the loop.
Tested the fix on Code Playground and is working fine.

Answer 2

yea explanation: you initialized dice to a random number, but in the loop you never changed it, so it was always the same number