> I'd be interested to know if there's a language with an operator like this for either type of array.)

Short: alists in Lisp allow this

Long: Dunno if there is an "operator", but Lisp has various approaches to associative arrays and alists are the most basic. They are basically just lists of "pairs" with linear search, hence slow.

Disclaimer: my Lisp is eLisp

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

PS: obligatory Xkcd ;)

In reply to Re^2: can I change hash keys or values directly (Lisp) by LanX
in thread can I change hash keys or values directly by misterperl

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