[swift-evolution] [swift-evolution-announce] [Review] SE-0187: Introduce Sequence.filterMap(_:)

[Logan Moseley]

+1 for filterMap(_:)

On Wed, Nov 8, 2017 at 7:35 PM, Johannes Weiß via swift-evolution <
swift-evolution at swift.org> wrote:

> +1 and agree with Stephen on why
>
> > On 8 Nov 2017, at 8:17 am, Stephen Celis via swift-evolution <
> swift-evolution at swift.org> wrote:
> >
> > +1
> >
> >> On Nov 7, 2017, at 6:23 PM, John McCall <rjmccall at apple.com> wrote:
> >>
> >>      • What is your evaluation of the proposal?
> >
> > BJ summarized my thoughts nicely. I think “flatMap” in its current form
> is confusing to both newcomers and functional programmers familiar with the
> nomenclature. I’ve been aware of this disparity and thought about it for
> awhile. I typically redefine “flatMap” as “mapOptional” in my projects for
> clarity.
> >
> >>      • Is the problem being addressed significant enough to warrant a
> change to Swift?
> >
> > I think so! It improves the user experience in a significant way to
> those that encounter the function in the wild.
> >
> >>      • Does this proposal fit well with the feel and direction of Swift?
> >
> > Yes.
> >
> >>      • If you have used other languages or libraries with a similar
> feature, how do you feel that this proposal compares to those?
> >
> > It fits in well. Swift’s current extra implementation of “flatMap” is
> the anomaly.
> >
> >>      • How much effort did you put into your review? A glance, a quick
> reading, or an in-depth study?
> >
> > Gave a quick reading to the proposal.
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>
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-- 
Logan
loganmoseley.com
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