Definition and Usage
The prototype property allows you to add properties and methods to an object.
Syntax
object.prototype.name=value |
Example
In this example we will show how to use the prototype property to add a property to an object:
<script type="text/javascript"> function employee(name,jobtitle,born)
{
this.name=name;
this.jobtitle=jobtitle;
this.born=born;
}var fred=new employee("Fred Flintstone","Caveman",1970):
employee.prototype.salary=null; fred.salary=20000; document.write(fred.salary); </script> |
The output of the code above will be:
