While validating input data on the server is essential, using JavaScript to validate data on the client as well is both simple to do and user-friendly. In this excerpt we examine a client-side function that tests the validity of a credit card number.
Literal notation is a new way of defining arrays in JavaScript that’s extremely flexible and robust. Learn about literal notation in this tutorial.
Events are common on Web pages, and, as a developer, sooner or later you will want to write specific handlers for them. Returning author Kenneth Tibbetts serves up some event handling code and discussion to whet your appetite.
Looking for a good tree menu script to aid in your site’s navigation? NosTree works across all DHTML browsers, and supports unlimited sublevels.
Doc JavaScript’s Web Services in IE thesis rolls on – this time with an in depth look at a practical example. Learn how to combine many of the techniques presented earlier in the series to build an interactive, in-page stock quote retrieval tool.
A “plug and play” script that makes your regular HTML tables sortable! Click on the table headers, and the column that follows is sorted either in descending or ascending order. Easy to install, and functions in IE5+ and NS6+.
Create graphs easily using our latest JavaScript creation! You supply the data, the script generates the bars.
It’s easy to load XML data into Internet Explorer using JavaScript; the real fun starts when you try to find specific information within the DOMDocument tree. Learn how to search for and select specific nodes using XPath notation.