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I'm writing javascript code that is read in as a string and executed via eval() by a firefox extension. Firebug does "see" my script so I am not able to use breakpoints, see objects, etc.
I am currently using Firefox's error console which I'm starting to find limiting. What are my other options? Ideally, I would be able to use Firebug or something similar to it. How do people generally debug Greasemonkey scripts?
I've tried using Lint and other validators, but my script uses a lot of objects and functions provided by the extension environment, making of a lot of the errors reported irrelevant. Also, the output tends to be too nitpicky (focusing of spacing issues, etc).
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When you debug script, you can either debug when a script error occurs or set a breakpoint by adding a debug statement to the script. A debug statement tells the debugger when to suspend execution and allow you to step through your script and examine its behavior.
I've created an interactive console for debugging Greasemonkey scripts. It requires Google Gears, but it includes a persistent history of commands that were typed.
UPDATE: Here's a link to a blog post describing using GreasyThug to debug a GM script. It's got a step by step procedure to replicate an error and devise a solution.
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