[swift-evolution] Removing enumerated?

[Matthew Johnson]

> On Jan 31, 2017, at 10:36 AM, Xiaodi Wu via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I totally sympathize with users being confused. It's an interesting idea to move it to Array only.
> 
> The thing is, it does make sense (and wouldn't be confusing) to enumerate a dictionary or set. Moreover, the behavior is _exactly_ what it says on the tin: when you enumerate something in real life, there is no sense in which the number is related to some sort of index. Can we fix this by documentation? Like, a big blaring "don't use this when you want the index”?

+1.  A similar method on collection that provides indices might be useful but that doesn’t mean we should remove `enumerated`.  User confusion should be addressed by documentation.

> On Tue, Jan 31, 2017 at 09:35 Ole Begemann via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
> On 31/01/2017 16:19, Ole Begemann via swift-evolution wrote:
> > Here are three previous discussion about this topic:
> >
> > 1) December 2015: [Idea] Add an (Index,    Element) sequence to
> > CollectionType
> > https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151221/004561.html <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151221/004561.html>
> > and
> > https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151228/004626.html <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151228/004626.html>
> >
> >
> > 2) April 2016: [Idea] Replace enumerate() with something more explicit
> > https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160411/015074.html <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160411/015074.html>
> >
> >
> > 3) September 2016: [Proposal draft] Introducing `indexed()`    collections
> > https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160926/027355.html <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160926/027355.html>
> 
> To clarify, the discussions I linked to don't all propose to remove or
> replace `enumerated()`, but they all talk about the potential confusion
> about what `enumerated()` does and does not do.
> 
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