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Very dumb question about JavaScript

Pages: 12
htirwin (1208)
Thank you very much! It's runing good!

... i even didnt have the compiler to compile this JavaScript, I just pick up an online instant compiler to run the program!

Thank you very much for your guys help! I really appreciate!

You can just save it as a .html file and then open it in a web browser by double clicking on it.
Last edited on
Z feng (74)
I know how to run it, just don't know how to get error code if the program has problem. I think i actually need a compiler thing.
Last edited on
Z feng (74)
Actually I wanna know use what compiler can use for test javaScript and get error code if there is any?
Z feng (74)
Can anyone help with this code:
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<!DOCTYPE html>
<html>

  <head>
    
    <title>
    
    
    </title>
    
    
    <script>
    
    
      function getInputAsText(_id){return document.getElementById(_id).value};
      function getInputAsNumber(_id){return parseFloat(document.getElementById(_id).value)};
      function setOutput(_id, _value){document.getElementById(_id).value = _value;}//Is it NULL? If it is, why and how to fix?
      function calculate()
        {
      
        // declare a variable 
          var score;
          var myAnswer1;
          var myAnswer2;
          var myAnswer3;
          var myResult1;
          var myResult2;
          var myResult3;
          
        // get variable's value
           score = 0;
          
          
        // perform this
        
        if (myAnswer1 == "8")
        
        {
        
         score = score + 1 ;// got this one right
         
         myResult1 = "Correct";
         
        }
        
        else 
        
        {
        
        myResult1 = "WRONG! It's 8";
        
        }
         
        if (myAnswer2 == "Apple")
        
        {         
          score = score + 1 ;// got this one right
          myResult2 = "Correct";
        }    
        else
        {        
        myResult2 = "WRONG! It's Apple"        
        }
          
        if (myAnswer3== "Microsoft")
        
        {
        
         score = score + 1 ;// got this one right
         
         myResult3 = "Correct";
         
        }
        
        else 
        
        {
        myResult3 = "WRONG! It's Microsoft"
        }  
        // write Output value
          setOutput("myResult1", myResult1);
          setOutput("myResult2", myResult2);
          setOutput("myResult3", myResult3);
          setOutput("score", "Your score is " + score + " out of 3 ");
    }    
      
    </script>
    
    
  </head>
    
    
  <body>
  
  
      Instruction:<br>
      
      Answer the three questions and press go.<br>
      
      Your score will appear.<br>
      
      
      <br>
  
      
      Input Values:<br>
      
      
      1. A byte is how many bits?      <input id="myAnswer1"><br>
      
      
      2. Steve Jobs heads what company?  <input id="myAnswer2"><br>  
      
      
      3. Bill Gates heads what company?  <input id="myAnswer3"><br>  
      
      
     <button onclick="calculate()">Go</button><br>
      

      <br>
      
      
      Output value:<br>
      
      Result #1: <input type="text" id = myResult1" size="70"><br>
      
      
      Result #2: <input id="myResult2" size="70"><br>
      
      
      Result #3: <input id="myResult3" size="70"><br>
      
      
      Your Score:   <input type="text" id = score" size="70"><br>
      
  
  </body>
  
  
</html>
cire (8284)
Find a forum where this is topical already. Better yet, have your friend find a forum where it's topical.
m4ster r0shi (2201)
You forgot a double quote before myResult1 here:

Result #1: <input type="text" id = myResult1" size="70"><br>

Same with score here:

Your Score: <input type="text" id = score" size="70"><br>

Also, you'll have to add a couple of lines in your calculate function:

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    /* ... */

    // perform this
 
    myAnswer1 = getInputAsText("myAnswer1");
    myAnswer2 = getInputAsText("myAnswer2");
    myAnswer3 = getInputAsText("myAnswer3");

    if (myAnswer1 == "8") 

    /* ... */

This could help a lot -> http://www.w3schools.com/js/default.asp

Find a forum where this is topical already. Better yet, have your friend find a forum where it's topical.

This is a very good suggestion too.
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