domManip (append/prepend/etc.) RE-evaluates contained scripts

[rgibson@…]

Using append (or another method implemented with domManip) to reposition an in-document element causes its scripts to be re-evaluated.

This is so because domManip passes all contained script elements to evalScript, which evaluates their code and removes the elements. I think it should skip evalScript for elements that are not disconnected or are otherwise known to have already been evaluated.

[rgibson@…]

Test case:  http://jsfiddle.net/zB4nZ/

[rwaldron]

This is intended behaviour, if you don't need your scripts re-evaluted then i'd recommend separating your presentation from your logic.

[rgibson@…]

If re-evaluation is intended, then why does evalScript remove elements from the DOM?

Also, why is this behavior not documented on the relevant  Manipulation pages?

[rudibr@…]

This have been bugging users for quite a few years now, at least a config option to turn on/off auto eval on dommanip would be nice.

Refactoring code to separate concerns , unfourtunately might not be an option in some cases. Im left with having to manually move out all the script tags every time I need a larger DOM manip (on content I cannot change).