Existential Operator / Null Propagation Operator
claude.pache at gmail.com
Thu Oct 13 16:07:26 UTC 2016
> Le 13 oct. 2016 à 17:14, Kagami Rosylight <saschanaz at outlook.com> a écrit :
> >IIRC the proposed syntax for computed properties was x?.[y],
> Yes you’re right, sorry :/
> IMO it still seems the syntax problem is the main reason why this proposal has stalled. If not, what is the problem here?
The issue with `?.[` is that it is considered as not pretty by some people. A syntax that is at the same time pretty, technically working, and not confusing is difficult to find.
Concerning your suggestion of using `!`: From a technical point of view, using `![` instead of `?.[` may work only if you forbid a line terminator before the `!`, because the following program is valid as of today (with implied semicolons):
> I’m curious why this proposal is not even listed in stage 0 proposal list.
Because no representative of TC39 has volunteered to champion it.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the es-discuss