[css-houdini-drafts] [css-typed-om] Add .update() to styleMap

tabatkins has just created a new issue for 
https://github.com/w3c/css-houdini-drafts:

== [css-typed-om] Add .update() to styleMap ==
Per [Seattle 
resolution](https://log.csswg.org/irc.w3.org/houdini/2017-01-10/#e755988),
 we should add a .update() method to styleMap, which takes a key and a
 callback, passing the value to the callback and setting the key to 
the return value.  This is a convenience API to make it easier to 
mutate things without having to repeat yourself.

(There was discussion about this making things more performant, as you
 only need one cache lookup, but Daniel Ehrenburg pointed out that you
 can mutate the map in the callback, so you can't rely on the cache 
lookup remaining valid.)

Please view or discuss this issue at 
https://github.com/w3c/css-houdini-drafts/issues/353 using your GitHub
 account

Received on Friday, 3 February 2017 19:16:53 UTC