How can I convert binary float number into a decimal float number ?

**Dormilich** · Aug 16 '10, 10:47 AM

you do this as integer via parseInt() by passing the input’s radix (second parameter). (binary numbers usually ain’t floats)

**Udara chathuranga** · Aug 17 '10, 07:31 AM

Help more

I am a beginner.So can you explain this that answer with an example.
Thanks

**Dormilich** · Aug 17 '10, 07:55 AM

in JavaScript there is exactly one number type: float (IEEE 774). that is, a binary number must be a string consisting of 0s and 1s. for string conversion you have 3 methods:
- Number() (the constructor for the Number objects)
- parseFloat() (parse a string into a float (obviously a decimal float))
- parseInt() (parse a string as integer into a float using the given radix)

thus if you have any number that’s not decimal, you have to apply parseInt(), as that’s the only function where you can set the radix.

**Udara chathuranga** · Aug 17 '10, 06:26 PM

Thank you sir I understood.
But please check is it possible to develope the script below, to convert binary float number in to decimal float number.

Code:

<html xmlns="http://www.w3.org/1999/xhtml"> 
     <head></head>
  <body>
 <script type="text/javascript">
   function ConvertToBinary(){
        var numberValue = document.getElementById('NumberInput').value;
       var decNumber = Number(numberValue);
         var binaryNumber = decNumber.toString(2).toUpperCase();
  
         document.getElementById('Result').value = binaryNumber;
       }
       function ConvertToDec(){
         var binaryNumber = document.getElementById('NumberInput').value;
       var decNumber = parseInt(binaryNumber, 2);
         document.getElementById('Result').value = decNumber;
      }
    </script>
  
     <div style="text-align:center">
       Number: <input type="text" id="NumberInput"></input>
       Result: <input type="text" id="Result"></input>
      <br/>
      <button onclick="ConvertToBinary();">Convert To Binary</button>
      <button onclick="ConvertToDec();">Convert To Decimal</button>
     <br />
    </div>
   </body>
 </html>

**Dormilich** · Aug 17 '10, 09:13 PM

there’s one important thing you forgot:

© 2010 Frinavale

if you copy, copy right (pun intended)

**Udara chathuranga** · Aug 19 '10, 08:06 AM

Thank you sir I understood.
But please check is it possible to develope the script below, to convert binary float number in to decimal float number.

Code:

    <html xmlns="http://www.w3.org/1999/xhtml"> 
         <head></head>
     <body>
  <script type="text/javascript">
     function ConvertToBinary(){
     var numberValue = document.getElementById('NumberInput').value;
         var decNumber = Number(numberValue);
          var binaryNumber = decNumber.toString(2).toUpperCase();
 
         document.getElementById('Result').value = binaryNumber;
         }
       function ConvertToDec(){
        var binaryNumber = document.getElementById('NumberInput').value;
        var decNumber = parseInt(binaryNumber, 2);
         document.getElementById('Result').value = decNumber;
       }
    </script>
 
      <div style="text-align:center">
        Number: <input type="text" id="NumberInput"></input>
        Result: <input type="text" id="Result"></input>
      <br/>
       <button onclick="ConvertToBinary();">Convert To Binary</button>
       <button onclick="ConvertToDec();">Convert To Decimal</button>
       <br />
     </div>
   </body>
  </html>

**Dormilich** · Aug 19 '10, 08:08 AM

I would assume Frinavale doesn’t publish code that’s not working.

How can I convert binary float number into a decimal float number ?

How can I convert binary float number into a decimal float number ?

Comment

Comment

Comment

Comment

Comment

Comment

Comment