[swift-evolution] Proposal: Replace ?? by an (optional) argument to ?

[Amir Michail]

> On Jan 25, 2016, at 9:28 PM, Erica Sadun <erica at ericasadun.com> wrote:
> 
> Not loving this.  I'm quite happy with ??-coalescing and don't see
> a compelling reason it needs to be "cleaner". I find your suggested
> enhancement less readable. Looks like an optional chaining across 
> a function.
> 

?? puts the least important part of the expression in the most important position — namely, the end.

> -- E
> 
>> On Jan 25, 2016, at 7:03 PM, Amir Michail via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> Examples:
>> 
>> * instead of x ?? false, you would have x?(false)
>> * instead of x?.isEmpty ?? false, you would have x?(false).isEmpty
>> 
>> I think this change would result in cleaner looking code.
>> 
>> 
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