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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Improving the Random Number Guessing Game

Jacques Retief
Jacques Retief
954 Points
Posted by Jacques Retief
Jacques Retief
954 Points

Just a post to brag 

var correctGuess = false;
var randomNumber = Math.floor(Math.random() * 6 ) + 1;

var guess = prompt('I\'m thinking of a number between 1 and 6. What is it?');

if (parseInt(guess) === randomNumber ) {
  correctGuess = true;
} else if ( randomNumber > 3 ) {
  var guessTopRange = prompt('Try again. The number I am thinking of is more than 3');
  if (parseInt(guessTopRange) === randomNumber) {
      correctGuess = true;
  }
} else if ( randomNumber < 4 ) {
  var guessBottomRange = prompt('Try again. The number I am thinking of is less than 4');
  if (parseInt(guessBottomRange) === randomNumber) {
      correctGuess = true;
  }
}

if ( correctGuess ) {
    document.write('<p>You guessed the number!</p>');
} else {
    document.write('<p>Sorry. The number is ' + randomNumber + '.</p>');
}

Very happy with my 'mod' :D

2 Answers

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

It seems to work well.

But it's curious that you wouldn't give a hint based on the first guess. If I guess 3 it may say "The number I am thinking of is less than 4". But I might expect it to say "The number I am thinking of is less than 3."

Jacques Retief
Jacques Retief
954 Points
Jacques Retief
Jacques Retief
954 Points

Your answer makes me think of 

String.prototype.replace()

and 

String.prototype.split()

I chose to split down the middle between 1 and 6 :)

Jacques Retief
Jacques Retief
954 Points
Jacques Retief
Jacques Retief
954 Points

So many variables to choose from!

What if your guess was 2, and the answer was 1?

The hint would have to be reframed.

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

In that case, you would say "The number I am thinking of is less than 2." The number would always be the guess, only the "less" or "more" would change.

Jacques Retief
Jacques Retief
954 Points
Jacques Retief
Jacques Retief
954 Points

Steven Parker, your enthusiasm keeps the light shining and that's what I like about you! Even if the hint points you to the obvious answer, I still feel the Joy in searching for the answer, and that is what makes you a great teacher. Thanks!