On Sat, Jul 16, 2011 at 9:16 PM, Alan Malloy <a...@malloys.org> wrote: > On Jul 16, 7:11 pm, Asim Jalis <asimja...@gmail.com> wrote: >> I've been using assoc-in and dissoc-in to navigate through nested >> associative structures (HTTP requests). Had some questions: >> >> 1. Why doesn't dissoc-in take multiple key-sequences? For example: >> >> (dissoc-in m [:a :b :c] [:a :b :d]) >> >> I can do this using a series of dissoc-in calls, but it might be >> easier to just have this naturally there. > > (update-in m [:a :b] dissoc :c :d) > >> 2. Why isn't there a select-in? Even dissoc-in is in contrib instead >> of in core. Is there an easier way to do these things that I am >> missing? > > What is select-in supposed to do? It's either get-in+select-keys, or > update-in+select-keys, depending on what you intend. > >> 3. Similar to #1, why doesn't assoc-in take a sequence of >> key-sequences and values? For example: >> >> (assoc-in m [:a :b :c] 1 [:a :b :d] 2) >> >> Again this is possible by doing a sequence of assoc-in calls. Now is >> the reason these are not provided to hint that this might not be the >> most efficient way to do this kind of surgery? > > (update-in m [:a :b] assoc :c 1 :d 2)
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