Browser plug-in usage

As we all know, the first rule for developing Ajax applications is to develop on the Firefox browser, because Firefox provides a variety of debugging tools. However, in the end, we had to perform tests on IE. If there was a problem with IE, we might have to debug it on IE.

Jean-Fabrice rabaute develops a small tool for debugging JS on IE browsers, called companion. js. It can help you implement some debugging functions on Firefox on IE:

1. Javascript detailed error reports, such as call stacks and JS file names
2. Interactive debugging window similar to firebug
3. You can observe JavaScript objects at runtime.

Companion. JS:

Http://www.my-debugbar.com/wiki/CompanionJS/HomePage
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To use the step into and step over buttons in the debug view of firebug in Firefox, you must first set the breakpoint of the Javascript script.
The debug view contains buttons such as step into and step over. These buttons are generally invalid. If you need to debug JavaScript code in one step, you can set breakpoints in the corresponding JavaScript code and then refresh the page.

[Firebug overview]
Current version: 1.05
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
Firebug integrated in Firefox allows you to understand a large number of development tools during your browsing. You can edit, debug, and monitor CSS, HTML, and JavaScript on any browser page in real time.
Visit the firebug website for documentation, screen shots, and discussion forums:
Visit the firebug website for documents and discussion forums.

[Firebug publishing url]
Https://addons.mozilla.org/en-US/firefox/addon/1843
[Firebug site]
Http://www.getfirebug.com
[Firebug documentation]
Http://www.getfirebug.com/docs.html
[Firebug bug]
Http://code.google.com/p/fbug/issues/list
[Firebug view]
Console
Script script
Dom Document Object Structure
Net network

[Firebug console API]
Console API documentation, http://www.getfirebug.com/console.html
Console. Time () is used to calculate the time

[Firebug FAQ]
When outputting the firebug console object, note that the first parameter is automatically recognized as a format string.

To use the step into and step over buttons in the debug view of firebug in Firefox, you must first set the breakpoint of the Javascript script.