Progress Monitor for IdealProgrammer.com

Take Swift, Intelligent, Massive, Planned, Loving, Effective (S.I.M.P.L.E.) Action to Transform Self into Ideal

Skip Repetitive Navigational Links

Home

News

Presenters

Contact

Please login

Boolean Example

Description: Illustrates the JavaScript syntax for the Boolean example.

Syntax: var myBool = new Boolean(); – Demonstrates creating a Boolean object and various ways to make it true or false

Boolean Example Code:

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html>
  <head>
    <title>Boolean</title>
    <script type="text/javascript" >
        //*****************************************************
        // How to create a Boolean object
        //*****************************************************
 
        var myBool = new Boolean();
 
        //*****************************************************
        // Various Ways to set Boolean object to false
        //*****************************************************
 
        //  Note: If the Boolean object has no initial value or
        // if it is 0, -0, null, "", false, undefined, or NaN, 
        // the object is set to false. Otherwise it is true 
        // (even with the string "false")!
        //*****************************************************
 
        var myBool = new Boolean(0);
        var myBool = new Boolean();
        var myBool = new Boolean("");
        var myBool = new Boolean(null);
        var myBool = new Boolean(NaN);
        var myBool = new Boolean(false);
 
        //*****************************************************
        // Various Ways to set Boolean object to true
        //*****************************************************
 
        var myBool = new Boolean(true);
        var myBool = new Boolean("true");
        var myBool = new Boolean("false");
        var myBool = new Boolean("Mazda");
 
        //*****************************************************
        // How to access a Boolean object
        //*****************************************************
 
        document.write(myBool)
 
 
 
    </script>
  </head>
  <body>
  </body>
</html>