[swift-evolution] Optional Setting

[Johan Jensen]

There’s already

a = a ?? []

which is a shorthand for

a = a ? a : []

For some reason I find it slightly weird to see ?= but that might just be
because I’m not used to seeing it.

On Tue, Dec 15, 2015 at 11:53 PM, James Campbell via swift-evolution <
swift-evolution at swift.org> wrote:

> Would be great to have a ?= syntax.
>
> So if
>
> var a: [String]? is nil then
>
> a ?= []
>
> will set it with a new array but if it already has a value then it won't
> do anything :)/
>
> --
>  Wizard
> james at supmenow.com
> +44 7523 279 698
>
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>
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