do i know any devs at mozilla/chrome/IE who can talk to me about perf characteristics around CSS's `insertRule(..)` and `deleteRule(..)`?
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@getify In Gecko they'll force us to rerun all cascading + selector matching (slow!), but should coalesce well. (Better if scoped style.)
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@davidbaron my goal is to update/replace rules, not create new ones. sounds like there's no way to "tell" gecko that?
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@getify Do they have the same selectors? If so, can you manipulate the declaration instead? If not, we have to do all that work.
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@getify Actually, though, manipulating the declaration doesn't get you anything faster. (Though, potentially, it could in the future.)

Dec 13, 2014 · 6:11 AM UTC

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Replying to @davidbaron
@davidbaron using a technique i call "css templating" to regenerate the style rules in browser w/ new vals, then to update w/ insert/delete
Replying to @davidbaron
@davidbaron it would be so much more ideal if there was a `replaceRule(..)` or the like.