Kevin Smith wrote:
We should perhaps review this old thread: https://esdiscuss.org/topic/fail-fast-object-destructuring-don-t-add-more-slop-to-sloppy-mode for another possible way to avoid non-compositionality. (Look for the suggestion about "Nil". It's basically an exotic falsey object which returns itself for any property lookups or calls.)
Yeah, that's the Null Pattern I mentioned few posts before. I remember I suggested this to be part of the language itself, as a first-class member, but it seems it wasn't legible; OTOH, it seemed to be good enough to use while still in the level of references, but when coming back to values, it was suggested to be changed to undefined.
It is still interesting question if it could be part of the language itself, but even if not and only applicable as a reference, it can be a good solution (it that case a?.b.c would yield undefined, not an error in case a is null).
Herby _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
