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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops `do ... while` Loops

I don't understand why it doesn't work

var randomNumber = getRandomNumber(10);
var guess;
var guessCount = 0;
var correctGuess=false;
function getRandomNumber( upper ) {
  var num = Math.floor(Math.random() * upper) + 1; 
  return num;

do{ guess = prompt ( ' I am thinking of a number from 1 to 10. What is it? ');
   if( parseInt(guess)=== randomNumber){  correctGuess===true;
} while (!correctGuess)
  document.write ('<h1> You guessed the number </h1>');
document.write( 'It took you'+ guessCount + 'guesses to get the correct number');

*Mod Note: * - Added Forum markdown for code clarity.

2 Answers

Justin Radcliffe
Justin Radcliffe
18,987 Points

Hey Sudesh, your code nearly works, you're just missing a closing curly brace for your do statement just after your if statement. It should work nicely with that fix.

Actually looking at your code more closely you had an endless loop going on too, after changing your code by adding a break it works as you intended it to:

    guess = prompt ( ' I am thinking of a number from 1 to 10. What is it? ');
    if( parseInt(guess) === randomNumber) {  
} while (!correctGuess)

Hi Justin Radcliffe thank you very much .

It has been very helpful, thank you for the correction.

Really appreciate it . :)