JavaScript Boolean constructor Property

Below is the example of the Boolean constructor property.

  • Example:
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    <script type = "text/javascript"> 
            var bool = false;
            document.write("bool.constructor:" 
                    + bool.constructor); 
    </script>    

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  • Output:

    bool.constructor:function Boolean() { [native code] }
    

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In JavaScript, the boolean constructor property returns the constructor function for an object. For JavaScript Boolean, the constructor property returns function Boolean() { [native code] }.


Syntax:


boolean.constructor


Return value: It returns the function Boolean() { [native code] }.


More example codes for the above property are as follows:

Example 1: This example illustrates boolean constructor property.













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<!DOCTYPE html> 


<html> 


  


<head> 


    <title> 


        JavaScript Boolean constructor Property 


    </title> 


</head> 


  


<body style="text-align:center;"> 


  


    <div> 


              


        <h1 style="color: green;">GeeksforGeeks</h1> 


                  


        <p> 


            JavaScript Boolean constructor Property 


            returns the function that created 


            the boolean's prototype: 


        </p> 


                  


        <b id="GFG"></b> 


          


    </div> 


      


    <!-- Script to use boolean constructor -->


    <script> 


        var bool = false; 


        document.getElementById("GFG").innerHTML 


                = bool.constructor; 


    </script> 


</body> 


  


</html>                   



















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Output:



Example 2: This example illustrates boolean constructor property.











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<!DOCTYPE html> 


<html> 


  


<head> 


    <title> 


        JavaScript Boolean constructor Property 


    </title> 


</head> 


  


<body style="text-align:center;"> 


  


    <div> 


              


        <h1 style="color: green;">GeeksforGeeks</h1> 


                  


        <p> 


            JavaScript Boolean constructor Property 


            returns the function that created 


            the boolean's prototype: 


        </p> 


        <button onclick="gfg()">Click me</button> 


        <p id="name"></p> 


    </div> 


      


    <!-- Script to use Boolean constructor Property -->


    <script> 


    function gfg(){ 


        var bool = false; 


        document.getElementById("name").innerHTML 


                = bool.constructor; 


    } 


    </script> 


</body> 


  


</html>       



















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Output:




Supported Browsers: The browsers supported by JavaScript Boolean constructor Property are listed below:


    

  • Google Chrome
    • 

  • Internet Explorer
    • 

  • Mozilla Firefox
    • 

  • Safari
    • 

  • Opera
    • 



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