T.J. Crowder wrote:
On 12 June 2012 16:42, Herby Vojčík <he...@mailbox.sk
<mailto:he...@mailbox.sk>> wrote:
But I understand there are problems. First, what with optional
params after ...rest. And the second, how to parse it when foo(1, 2)
called?
I would think with
function foo(a, b, ...others, c) {
}
then given
foo(1, 2);
...within foo a is 1, b is 2, others is empty, and c is undefined. E.g.,
args prior to the restargs get priority over args after rest args. This
is consistent with
foo(1);
...where within foo a is 1, b is undefined, others is empty, and c is
undefined.
It does seem as though it can be deterministic, and pretty easy to
explain. Which isn't necessarily an endorsement, just identifying that
function foo (a, b, ...rest, c, d) { ... }
foo(1, 2, 3)
What here?
Yes, [1, 2, [], 3, undefined] is probably the most logical one. But then
d is not the last one (yes, it is only last one when there is at least
four of them).
this particular issue doesn't immediately seem like a roadblock.
-- T.J.
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