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

DIJITUL UK
DIJITUL UK
17,246 Points
Posted by DIJITUL UK
DIJITUL UK
17,246 Points

I can't understand why this isn't working?

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 between 1 and 10. What is it?");
    guessCount += 1;

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

document.write('<h1>You Guess the number!</h1>');
document.write('It took you ' + guessCount ' tries to guess the number ' + randomNumber);

I'm not entirely sure why this isn't working / can't spot the syntax error I've made. Can anyone help?

3 Answers

Rune Andreas Nielsen
Rune Andreas Nielsen
5,354 Points
Rune Andreas Nielsen
Rune Andreas Nielsen
5,354 Points

I think the problem is that you forgot a + here between guessCount and "tries to guess the number"

document.write('It took you ' + guessCount + ' tries to guess the number ' + randomNumber);
Scott Callaway
Scott Callaway
13,311 Points
Scott Callaway
Scott Callaway
13,311 Points

Yes, just did some testing of my own in Chrome Dev Tools and can confirm, that is the problematic line.

German Tsatsura
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.a{fill-rule:evenodd;}techdegree
German Tsatsura
Full Stack JavaScript Techdegree Student 10,173 Points
German Tsatsura
.a{fill-rule:evenodd;}techdegree
German Tsatsura
Full Stack JavaScript Techdegree Student 10,173 Points

I don't think that is correct Im having the same issue

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 between 1 and 10. what is it?"); } guessCount += 1;

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

document.write('you got it') document.write('it took ' + guessCount + 'tries to get ' + randomNumber + ' ');

German Tsatsura
seal-mask
.a{fill-rule:evenodd;}techdegree
German Tsatsura
Full Stack JavaScript Techdegree Student 10,173 Points
German Tsatsura
.a{fill-rule:evenodd;}techdegree
German Tsatsura
Full Stack JavaScript Techdegree Student 10,173 Points

''' 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 between 1 and 10. what is it?"); } guessCount += 1;

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

document.write('you got it') document.write('it took ' + guessCount + 'tries to get ' + randomNumber + ' '); '''