Allen Wirfs-Brock wrote:
Note that in this and many other similar situations the isFoo method is actually redundant. You would get the same effect by saying:
if (obj1.doFooishThings) obj1.doFooishThings();
this suggests that a useful operator might be a conditional property access, perhaps something like:
??obj.doFooishThings();
which parses as
CallExpression :
?? MemberExpression Arguments
If conditionally calls the value of the MemberExpression if it is not undefined.
CoffeeScript has foo?.bar ... and foo.baz?(...) in lieu of
if (foo != null) foo.bar ...
and
if (foo.baz != null) foo.baz(...)
where all ... are meta. We've talked about these a bit in TC39 but I
don't recall any definite outcome.
/be
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