I want to make a clean up script for Gmail to my needs. I happy to use a script, which code I found in a blog, but now I need to modify it.
How can I test it without risking my Gmail box? I'm not good or experienced inJS, so I'm pretty sure there will be some mistakes. And I don't want my emails messed up. Is there a sandbox, or some kind of testing environment?
No, there is not. You should create a test account for you to work with.
Also, when working with your account. You could always just log an action instead of doing it. i.e. instead of
thread.moveToTrash()
do a
Logger.log('move thread "'+thread.getFirstMessageSubject()+'" to trash');
Then check menu View > Logs to verify the actions your script would do. You could also create a TEST variable and use it as condition in your code to determine if it should perform an action or just log it (or both).
