mozilla.org/projects/venkman):
This is a sophisticated JavaScript debugger
that can be used through Firefox.
5 JSLint (www.jslint.com): This program
performs basic syntax checks on
JavaScript. Just paste your JavaScript in
the box on the JSLint Web site and click
the JSLint button.
6 Firebug (www.getfirebug.com): This
FireFox extension provides a wealth of
debugging tools, covering HTML, CSS,
JavaScript, and the DOM.
7 Firefox Firefox Firefox: In case it??™s
not clear from this list (where Firefox is
singled out four times), Firefox is clearly
the best browser for debugging Ajax
applications (it may be the best browser
period). You??™ll need to test your Ajax
scripts on other browsers to verify support,
but when it comes to debugging,
use Firefox fi rst!
Appendix 145
extra bits
Ajax issues p. 130
??? With the code in this book, every
example will work whether or
not the user??™s browser supports
Ajax. The examples were purposefully
designed this way, so
that if the nice Ajax layer won??™t
work, the user isn??™t left behind.
This is an approach you should
maintain as much as possible.
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