Sorry for not being clear about this. Here is a simplified example of the implementation: https://gist.github.com/2911817
Also this is just a single particular example, but I expect there to be more. I think what I'm really asking for is a way to know if …rest is being used. Also IMO arrow functions should not have `arguments` at all. Regards -- Irakli Gozalishvili Web: http://www.jeditoolkit.com/ On Monday, 2012-06-11 at 11:04 , Allen Wirfs-Brock wrote: > > On Jun 11, 2012, at 10:56 AM, Irakli Gozalishvili wrote: > > > I don't think any library should ever rely on f.length. > > > > That's a wrong attitude, there always will be legitimate uses of any > > feature, otherwise such features are just harmful & IMO should be > > deprecated / removed. > > Let me try again. We don't understand your use case. You didn't show us the > definition of your dispatch function so we have to guess. Even so, It is > hard to imagine a "legitimate" use with dynamically provided functions, > particularly as the length values assigned to the existing built-ins don't > follow strict rules. At the very least you need to help us understand why > your use case is both reasonable and valid. > > Allen > > >
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