Book Image

IBM Lotus Domino: Classic Web Application Development Techniques

By : Richard G Ellis
Book Image

IBM Lotus Domino: Classic Web Application Development Techniques

By: Richard G Ellis

Overview of this book

Domino is an application server that can be used as a standalone web server. As part of the Domino suite, it provides a powerful collaborative platform for the development of customized business applications. It provides enterprise-grade e-mail, messaging, and scheduling capabilities. There are many novice and moderately experienced developers who would like to enhance a Web-enabled Domino application, but to do so they need to learn the fundamentals of HTML, CSS, and JavaScript, and also how to use those technologies in the context of a Domino application. Information about how to do this is available on the Web, but the sheer volume of that information makes it very difficult for the newbie to get started. Topics and techniques presented in this book provide a comprehensive overview of all major design strategies used to Web-enable traditional Domino applications. Illustrations provide clear working examples of how HTML, CSS, and JavaScript can be incorporated into existing applications to improve both look and performance. Early chapters provide suggestions for working with users and for managing your development time and effort. Later chapters focus in detail on forms and pages, views, navigation, agents, security, performance, and troubleshooting. Examples demonstrate clearly how to incorporate HTML, CSS, and JavaScript into Domino designs. By the end of this book you will have learned what you need to know to quickly and competently tackle web application enhancement tasks. Beyond providing a good understanding, this book will continue to serve as a valuable source of ideas and techniques. This book brings together essential classic strategies and techniques used to deploy Domino applications to the Web. Chapters cover all major design elements, with a special emphasis on how to craft these elements to work well with web browsers. Many topics include alternative techniques for solving particular problems. Illustrations and examples can be used where appropriate, or they can serve as jumping off points for your own solutions.
Table of Contents (16 chapters)
IBM Lotus Domino: Classic Web Application Development Techniques
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
10
Testing and Debugging

Developing and debugging scripts


JavaScript code runs when browser events occur typically in response to something that the user does (for example, clicks a button). Developers should test all the scripts by exercising all the functionality of the application. Sometimes the result of a script is obvious because something moves or changes color. Sometimes nothing obvious happens or perhaps an unexpected page not found error is displayed. Scripts can fail without displaying error messages or any other indication of failure, and the developer is left wondering where to start troubleshooting.

In addition to inserting JavaScript alert function calls into suspect scripts and viewing the page source in the browser, here are two general techniques that can help during script development.

Use browser debugging tools

Get to know your browsers' developer tools and other options. For example, IE displays a warning icon (and sometimes a message) in the lower left-hand corner of the browser window. Click...