Make sure jQuery.data( elem ) always returns an object

[john]

Right now it'll return null if no data object exists.

[john]

Fixed. ​http://github.com/jquery/jquery/commit/eed69eccc54d010889b5d8495320538d7ceb4e51

[stimpy77]

I just came across another bug, where page unload pukes on this line in jQuery 1.4.2:

var events = jQuery.data(this, "events"), handlers = events[ event.type ];

.. should be ..

var events = jQuery.data(this, "events"), handlers = events ? events[ event.type ] : null;

I logged in to report this bug but it seems this (#5971) should have fixed this. I may be misunderstanding "Milestone" field but this defect remains in 1.4.2.

[john]

You're mis-understanding the bug - that's a separate case where you're requesting a specific property where it (apparently) doesn't exist any more. What you're describing is ticket #6163 and it's already been fixed.

[stimpy77]

Added #6243

[stimpy77]

.. and shouldn't have. (oops)