Function.length and Default Parameters
khs4473 at gmail.com
Fri Oct 12 06:18:26 PDT 2012
> This looks like the sort of thing that will get labeled "uselessly
> unreliable", then again I was in favor of making length equal the number of
> formal parameters—rest included.
Right - the simpler the rule, the better for this kind of thing. I
wouldn't include rest, though, because it's "cardinality" is really
infinity, and therefore not particularly useful in this context.
But the simplest rule would require a change to the reported length of some
built-ins, as Allen has said. Tradeoffs...
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