• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

Chapter 20. Compatibility Techniques > Platform and Browser Compatibility

20.1. Platform and Browser Compatibility

When developing production-quality JavaScript code, testing and knowledge of platform-specific, vendor-specific, and version-specific incompatibilities are your chief allies. If you know, for example, that Netscape 2 on Macintosh platforms always gets the time wrong by about an hour, you can take steps to deal with this problem. If you know that Netscape 2 and 3 on Windows platforms do not automatically clear your setting of the status line when the mouse moves off a hypertext link, you can provide an appropriate event handler to explicitly clear the status line. If you know that Internet Explorer 4 and Netscape 4 support vastly different Dynamic HTML models, you can write pages that use the appropriate mechanism depending on the browser in use.

Knowledge of existing incompatibilities is crucial to writing compatible code. Unfortunately, producing a definitive listing of all known vendor, version, and platform incompatibilities would be an enormous task. It is beyond the scope and mission of this book, and it has apparently never even been seriously attempted. You may find some assistance on the Internet, but you will have to rely primarily on your own experience and testing. Once you have identified an area of incompatibility, however, there are a number of basic approaches you can take to coping with it, as described in the following sections.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint