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- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <title>Inheritance</title>
- </head>
- <body>
- <form id="Main" runat="server">
- <asp:ScriptManager runat="server" ID="scriptManager" />
- <script type="text/javascript" src="Inheritance.js"></script>
- </form>
-
- <h2>Inheritance</h2>
- <p />
- <div>
- This file contains two classes defined in script: Person and Employee, where
- Employee derives from Person.
- <p />
-
- Each class has private fields, and public properties and methods. In addition,
- Employee overrides the toString implementation, and in doing so, it uses the
- base class functionality.
- <p />
- This example puts the Person class in the "Demo" namespace.
- <p />
- </div>
- <div>
- <ul>
- <li><a href="#" onclick="return OnTestNewClick()">Object Creation</a></li>
- <li><a href="#" onclick="return OnTestDisposeClick()">Object Dispose</a></li>
- <li><a href="#" onclick="return OnTestPrivatePropertyClick()">Public vs. Private Properties</a></li>
- <li><a href="#" onclick="return OnTestInstanceMethodClick()">Instance Methods</a></li>
- <li><a href="#" onclick="return OnTestOverrideMethodClick()">Overriden Methods</a></li>
- <li><a href="#" onclick="return OnTestInstanceOfClick()">Instance Of Check</a></li>
- </ul>
- </div>
- <script type="text/javascript" language="JavaScript">
- function GetTestPerson()
- {
- return new Demo.Person('Jane', 'Doe', '[email protected]');
- }
- function GetTestEmployee()
- {
- return new Demo.Employee('John', 'Doe', '[email protected]', 'Platform', 'Programmer');
- }
- function OnTestNewClick() {
- var aPerson = GetTestPerson();
- alert(aPerson.getFirstName());
- alert(aPerson);
- alert(Object.getType(aPerson).getName());
- var testPerson = GetTestPerson();
- alert(testPerson.getFirstName());
- alert(testPerson);
- return false;
- }
-
- function OnTestDisposeClick() {
- var aPerson = GetTestEmployee();
- alert(aPerson.getFirstName());
- aPerson.dispose();
- }
- function OnTestPrivatePropertyClick() {
- var aPerson = GetTestEmployee();
- alert('aPerson._firstName = ' + aPerson._firstName);
- alert('aPersona.getFirstName() = ' + aPerson.getFirstName());
- return false;
- }
- function OnTestInstanceMethodClick() {
- var aPerson = GetTestEmployee();
- aPerson.sendMail('Hello', 'This is a test mail.');
- return false;
- }
- function OnTestOverrideMethodClick() {
- var testPerson = GetTestEmployee();
- alert(testPerson);
- return false;
- }
- function OnTestInstanceOfClick() {
- var aPerson = GetTestEmployee();
- if (Demo.Employee.isInstanceOfType(aPerson)) {
- alert(aPerson.getName() + ' is an Employee instance.\nTitle property: ' + aPerson.getTitle());
- }
- return false;
- }
- </script>
- </body>
- </html>
-
-
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