Extension of the Date class in Javascript

The prototype property can also be used to extend JavaScript classes. In the following code, ISLEAPYEAR function () is implemented. It determines if the return value of getFullYear () is a leap year. ISLEAPYEAR () becomes a method of the Date object and therefore has access to Date.getFullYear(). <script language="JavaScript" type="text/JavaScript"> function isLeapYear() { var […]
Continue reading...