I wanted to sort a sequence of maps using a spec consisting of an ordered
map of key and order, like this:
(array-map :name 1 :age -1)
I couldn't find a ready-made solution, so I rolled my own. I ended up with
three functions with a total of 10 lines of code. Two of them are generic,
and one i
> On 31/08/2013 7:57 PM, "ulsa" > wrote:
>
>> I wanted to sort a sequence of maps using a spec consisting of an ordered
>> map of key and order, like this:
>>
>> (array-map :name 1 :age -1)
>>
>> I couldn't find a ready-made solution, so I
>(sort-by (juxt :name :age) (multi-comparator [compare >]))
>)
>
> On Sat, Aug 31, 2013 at 9:04 AM, Leonardo Borges
> > wrote:
> > Would this help?
> >
> > (sort-by (juxt :key1 :key2) your-list-of-maps)
> >
> > On 31/08/2013 7:57 P
Probably just a style pref though.
>
> On Wed, Sep 11, 2013 at 6:07 PM, ulsa >
> wrote:
> > Interesting. You used recursion, where I tried to see it as a sequence.
> Any
> > other differences?
> >
> > My solution was:
> >
> > (defn comp
In a couple of months, I'll have a whole day of teaching Clojure to ten of
my colleagues. They are experienced Java programmers, but otherwise Clojure
rookies. Any tips on how to structure such a workshop day?
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at their
> own pace. Allow enough time for the slowest ones to get through the basic
> part of the exercise, but have a stash of extra stuff for the quicker ones,
> so they don't get bored and frustrated while waiting on others.
>
> On Saturday, December 15, 2012 11:13:21 PM U
Thanks, I won't forget the REPL.
I think, however, that there is a risk of a disconnect, where newcomers
don't really grasp that there is a JVM running and that code is actually
compiled and injected into it, and that it's for real. They are used to
mickey mouse interactive tools that don't pr
Interesting idea. Let me ponder that.
When one starts pulling on a thread like metadata for example, all kinds of
interesting facets pop up. That's what I meant with my comment about the XP
practices graph thing. Different Clojure capabilities support and enable
other capabilities, and you need
Good point.
I really would like themselves to be able to set up their own environment.
I think it gives them a sense of control. However, as a fallback, it would
be great with a virtual machine with everything working. I'll consider that.
I believe you can get a similar level of interactivity
about Clooj?
> http://dev.clojure.org/display/doc/getting+started+with+Clooj
>
> Is it too buggy, or lacking in features, to start out with?
>
> On Tue, Dec 18, 2012 at 11:27 AM, ulsa
> > wrote:
>
>> Good point.
>>
>> I really would like themselves to be able
I have used the isBlank example in presentations. It's not a bad starting
point. Might look at how it could be used in a workshop. Thanks.
On Thursday, 20 December 2012 17:16:19 UTC+1, Thomas wrote:
>
> If you need to touch on the why of Clojure I found the example in the
> beginning Stuart Hall
lojure by playing and by reading idiomatic code.
> Until then, however, Clojure development can be VERY frustrating . Maybe
> this will all go away once we have better IDEs (LightTable, Session) full
> developed, but until then don't just "assume" that people understan
This is good advice. I think you can cover a lot of ground using this
approach, which I guess you need to do when writing a book.
As I mentioned in another post, I believe I have to choose between covering
a lot of ground and building them a foundation that they can experiment on
further.
On
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