Re: [DOM4] NodeList should be deprecated

On Thu, 08 Mar 2012 23:24:45 +0100, Ojan Vafai <> wrote:
> Dynamic NodeLists have a significant memory and performance cost. Static
> NodeLists are basically just under-powered arrays. We should just return
> Node arrays from any new APIs that return a list of Nodes. I'd like to  
> see NodeList get similar treatment to hasFeature, i.e. a note that it  
> not be
> used for new APIs and possibly even the explicitly list the APIs allowed  
> to return them.
> I don't see the Dynamic/Static distinction in DOM4 or the HTML spec. Is
> this specified anywhere?

We use the words "live" and "static".

> For reference, this came up in WebKit with some new Regions APIs

Mutation observers uses NodeList too.

Anne van Kesteren

Received on Friday, 9 March 2012 07:58:28 UTC