How to output Log when developing a plug-in?

[qian-jiahong]

When developing a plug-in, debugging is required. How to output Log?

[ccfs]

Use "Debug" add-on.
See the pdf for details.
If you are debugging an options page (options.js), you may need to prefix the statement with MainWindow. e.g. MainWindow.Addons.Debug.alert
The add-on displays messages on the Debug pane only.
Here is a temp version of the add-on which will write messages to a log file.
Under WebView, Addons.Debug.alert cannot run in "sync.js".

[qian-jiahong]

Thanks