Re: [Emacs-diffs] master 6354e3c: Handle indentation of nested ternary operators in JS

[Davis Herring]

> > +  isSet
> > +    ? (isEmpty ? 2 : 3)
> > +    : 4
>
> Not sure about JS, but at least in C, those parentheses are not needed

JavaScript and C have the same ?: parsing.  Moreover, I think even PHP 
would get that one right without parentheses, because grouping the first 
? and : and the second ? and : would be self-intersecting.

(What PHP gets wrong is

  !isSet ? 4 : isEmpty ? 2 : 3

which it, unlike all sane languages, parses as

  (!isSet ? 4 : isEmpty) ? 2 : 3

aka

  !isSet || isEmpty ? 2 : 3

which is rarely what was intended.)

Davis

--
This product is sold by volume, not by mass.  If it appears too dense or 
too sparse, it is because mass-energy conversion has occurred during 
shipping.