The last paragraph in section 4.6 of the Web Storage draft (10 April
2009), mentions a "native ordered dictionary data type". The URL to the
section in the draft is here:
http://dev.w3.org/html5/webstorage/#database-query-results
This is the first time I've seen the requirement for such a beast. You
can understand the desire for it, given the context, but still. Does
anything else in JavaScript make use of such a data structure? It's not
clear to me how you would even use it, without something like a list
comprehension, or some other functional construct. It's hard to imagine
how someone might make use of the ordered-ness in a plain old for/in
loop, for instance.
It would also be impossible, in the JavaScript in use today, AFAIK, to
emulate this with user-land JavaScript.
--
Patrick Mueller
