javascript output doesn't show

Question

I'm creating a simple program called guess a number. I'm having problem showing my output. So I don't know if i got the right formula.

<body>
<h3> Guess A Number</br> </h3><input type="integer" id="number" size="20"/>
<input type="button" id="guess" value="GUESS" onClick="guess()"/>

<script>
 function guess() {
 var num = document.getElementById("number").value; 
 var answer = Math.floor(Math.Random() * 100 + 1);

 if(num == answer)
     alert("Your guess is correct! The number is" + answer);

 else if(num != answer) 
     alert("Your guess is incorrect! The number is" + answer);

     }

</script>
</body>

Open up the Developer Console on your browser. It would have pointed you to the error. — epascarello
– epascarello, Commented Oct 11, 2015 at 13:53

Mate Hegedus · Accepted Answer · 2015-10-11 13:52:56Z

2

You had a syntax error when generating a random number.

It should be

Math.random();

But you have

Math.Random();

Here is the complete code:

<body>
<h3> Guess A Number</br> </h3><input type="integer" id="number" size="20"/>
<input type="button" id="guess" value="GUESS" onClick="guess()"/>

<script>
 function guess() {
 var num = document.getElementById("number").value;
 var answer = Math.floor(Math.random() * 100 + 1);

 if(num == answer)
     alert("Your guess is correct! The number is" + answer);

 else if(num != answer)
     alert("Your guess is incorrect! The number is" + answer);

     }

</script>
</body>

When developing Javascript, always have your browser's console turned on. It would have showed you this error. All browsers have consoles.

answered Oct 11, 2015 at 13:52

Mate Hegedus

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1 Comment

Albert Over a year ago

Lol thanks, didn't got that! I just started javascript just a few days ago. Thanks

Pedro Lobito · Accepted Answer · 2015-10-11 13:57:22Z

0

Your code is correct but you need to test the function with a fixed number to see if it works, then use Math.random(); (lowercase random()), in this case, I'm using 11 as the correct number..

 function guess() {
 var num = document.getElementById("number").value; 
 //var answer = Math.floor(Math.random() * 100 + 1);
  var answer = 11;

 if(num == answer)
     alert("Your guess is correct! The number is" + answer);

 else if(num != answer) 
     alert("Your guess is incorrect! The number is" + answer);

     }

<body>
<h3> Guess A Number</br> </h3><input type="integer" id="number" size="20"/>
<input type="button" id="guess" value="GUESS" onClick="guess()"/>

</body>

edited Oct 11, 2015 at 13:57

answered Oct 11, 2015 at 13:55

Pedro Lobito

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Comments

Ahsan.niloy · Accepted Answer · 2015-10-11 14:19:33Z

0

// --- use Math.random instead of Math.Random ------

`

<script>
 function guess() {
 
  var num = document.getElementById("number"); 
  //alert(num);
 var answer = Math.floor(Math.random() * 100 + 1);

 if(num == answer)
     alert("Your guess is correct! The number is" + answer);

 else if(num != answer) 
     alert("Your guess is incorrect! The number is" + answer); 

     }

</script>

<body>
<h3> Guess A Number</br> </h3><input type="integer" id="number" size="20"/>
<input type="button" id="guess" value="GUESS" onClick="guess()"/>
</body>

answered Oct 11, 2015 at 14:19

Ahsan.niloy

1

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