On Nov 24, 2011, at 12:32 AM, Sean Corfield wrote:
> @lloyda2 posted on Twitter: (reduce 'and '(false true)) => true ...Huh?
>
> I must admit, it looked odd to me... but I realized (after some REPL
> experimentation) this seems to be equivalent to ('some-symbol
> :some-key :some-default)
I saw the tweet too - and after experimenting in REPL - replied to it that in
this case 'and is just a symbol and 'foo works just the same.
> Can someone provide a bit more insight into why clojure.lang.Symbol
> behaves like a collection and what, if any elements does it have?
Also interested in learning more, but I concluded (erroneously?) that it is
false that is being "indexed" into: (:a false) returns nil as does ('and false)
and (get false 2); I assumed it was so that it would fail gracefully if
encountered where a collection was expected.
bill
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