Possibility to "subscribe" to warnings

[dougwilson]

It would be really neat if there was a way to write a function that would be called for a warning instead of only being able to use a console or periodically check jQuery.migrateWarnings. Possibly a event triggered on document when there is a warning?

My use case is a large single page application that uses jQuery around the place. It would be nice to set jQuery.migrateMute = true and add a function that listened for warnings and reported them somewhere custom. Possibly something like:

$(document).on('warning.jqmigrate', function (event, message) {
  handleJqueryMigrateMessage(message);
});

[dmethvin]

I'm trying to understand the use case here. The plugin is generating warnings that you should fix by editing the code. Once you've done that you would generally stop using the plugin. If you need it long term for a production site you would use the minified version because most of the time you wouldn't want it generating messages and simply want the compatibility issues fixed without complaint.

[dougwilson]

So, I have fixed as much as I could find by grepping the code base, but unfortunately there is so much code it's hard to know if I got them all. For the automated testing, I replaced console.warn with a function that would report the errors and found a few more from the testing, but I'm sad to say the tests are not 100% coverage. It would be nice to have a way to tap into the errors to report back to a central server to get reports back from the QA team as well as getting reports with the application out as a preview release in case any fell through, such that they can be fixed, but the application will still work for the user instead of being broken.

[gibson042]

There's nothing stopping you from duckpunching jQuery.migrateWarnings.push, but I recommend taking advantage of the recently-added jQuery.migrateTrace. At any rate, I don't see us adding this functionality ourselves.

[dougwilson]

No problem. Thanks for the plugin, though!