JSFiddle - React, Tailwind, and code Playground

JavaScript

var randomNumber = getRandomNumber(3);
var guess;
var guessCount = 0;
var correctGuess = false;

function getRandomNumber ( upper ) { 
	var num = Math.floor (Math.random() * upper) + 1; 
	return num; 
}

do { 
	guess = prompt("guess a number between 1 and 3 [Num is " + randomNumber + "]"); 
  guessCount += 1; 
  if (parseInt (guess) === randomNumber) { 
  	correctGuess = true; 
  } 
} while (!correctGuess)

document.write ("your number of guesses " +guessCount );