Oops not paying attention you are right. Hash map comes first as the
function. Works like a charm.
2009/2/6 Craig Andera <craig.and...@gmail.com>
>
> > (methods multifn)
> >
> > Returns a hash-map where the keys are vectors if the dispatch values of
> the
> > multimethods were vectors, weird and cool :)
> > How does one check for the existence of a key in a hash-map if the key is
> > vector? I tried several things and nothing obvious seemed to work.
>
> Vectors are values that compare like scalars do:
>
> ({[1 2 3] :numbers [\a \b \c] :letters} [1 2 3]) => :numbers
> ({[1 2 3] :numbers [\a \b \c] :letters} [3 4 5]) => nil
>
> Which is both surprising (to a newbie like me) and extremely logical
> in retrospect. :)
>
> >
>
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