Javascript boolean constructor() method returns a reference to the Boolean function that created the instance's prototype.
Use the following syntax to create a Boolean constructor() method.
boolean.constructor()
Returns the function that created this object's instance.
Try the following example.
<html> <head> <title>JavaScript constructor() Method</title> </head> <body> <script type="text/javascript"> var bool = new Boolean( ); document.write("bool.constructor() is:"+bool.constructor); </script> </body> </html>
bool.constructor() is : function Boolean() { [native code] }