[Webkit-unassigned] [Bug 57061] REGRESSION(r74228-75294): nth-child pseudo class makes removeChild ~200x slower

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=57061





--- Comment #2 from Igor Minar <iiminar at gmail.com>  2011-03-24 20:31:29 PST ---
At google we have a for now internal-only app that is affected. The testcase I attached is minuscule reduction of the affected part of our code base.

The functionality that is affected is a client side search. User types something into a input box and we update the DOM by removing all table rows that represent the records that were not matched by the user query.

I would say that removing table rows or list elements that were styled with nth-child(odd) (or nth-child(even)) because of user input is quite common scenario and affects more than us.

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