Yeah, I suppose that works. Feels a bit clunky, like the language lacks
specific support for this (in that it provides specific support for so many
other common constructs). But I guess I can make do with that.
I suppose there's a bit of a performance hit, in that constructing an empty
array and iterating over it is more expensive than a simple nil check, but
that's unlikely to cause issues in practice.
Thanks.
> On Jul 28, 2016, at 14:56 , Jacob Bandes-Storch <jtban...@gmail.com> wrote:
>
> How about "for item in someOptionalContainer ?? []" ?
>
> On Thu, Jul 28, 2016 at 2:55 PM, Rick Mann via swift-users
> <swift-users@swift.org> wrote:
> I often call methods that return an optional collection. I then iterate over
> it. The problem is, it's a bit cumbersome to write:
>
> if let container = someOptionalContainer
> {
> for item in container
> {
> }
> }
>
> I wish I could just write
>
> for item in someOptionalContainer
> {
> }
>
> such that if the optional is nil, it just skips the iteration altogether.
>
> Is there a syntax for that (especially in Swift 3)?
>
>
> --
> Rick Mann
> rm...@latencyzero.com
>
>
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>
--
Rick Mann
rm...@latencyzero.com
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