Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

johnny lawma
johnny lawma
3,298 Points

i can't find my mistake, the browser show these erro "Document.write is not a function".

here is the code:

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 guessed the number!</h1>');
Document.write ('it took you' + guessCount + 'tries to guess the number' + radomNumber);

1 Answer

Steven Parker
Steven Parker
210,469 Points

JavaScript is case-sensitive, and you have "Document.write" (with capital "D") instead of "document.write".