Existential Operator / Null Propagation Operator

Brendan Eich brendan at mozilla.org
Mon Apr 6 22:35:10 UTC 2015


Yeah, and it would line up with cover grammar needed for 
refutable-by-default patterns.

/be

Matthew Robb wrote:
>
> On Mon, Apr 6, 2015 at 5:42 PM, Brendan Eich <brendan at mozilla.org 
> <mailto:brendan at mozilla.org>> wrote:
>
>     Did you keep backward compatibility? `x?.1:y` must continue to work.
>
>
> ​This is why I suggested a leading operator (`?a.?b()`) because it 
> seems like it would have the least potential for conflict with 
> existing valid syntax​
>
>
>
> - Matthew Robb


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