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Re: plists, alists, and hashtables

From: Stefan Monnier
Subject: Re: plists, alists, and hashtables
Date: Thu, 06 Aug 2015 15:16:25 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

> In short a map is the fundamental data structure.

Beware: there are maps and then there are maps.
E.g. Javascript's objects are maps (typically thought of as being
implemented as some kind of hash-tables), yet Javascript also comes with

More importantly, mathematical maps are persistent, whereas your
apparently favorite implementation (the hash-table) is not persistent,
contrary to (e.g.) alists.


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