Warren Lynn writes:
Hi Warren,
> I found that if I define a protocol like this:
>
> (defprotocol IProc
> (procMethod [this] "some method"))
>
> I can invoke it on a type either
> (procMethod object)
> or
> (.procMethod object)
>
> Note the prefix dot in the second case.
>
> I like this "dot"
Baishampayan
I didn't know `map->Foo`. Thank you for the infomation!
On Monday, July 23, 2012 2:11:45 PM UTC+9, Baishampayan Ghose wrote:
>
> On Mon, Jul 23, 2012 at 10:37 AM, Takahiro Hozumi
> wrote:
> > 2. The construction of record depends on an order of arguments.
> > Sometimes, I feel tha
On Mon, Jul 23, 2012 at 10:37 AM, Takahiro Hozumi wrote:
> 2. The construction of record depends on an order of arguments.
> Sometimes, I feel that a lack of construction with key-value style is not
> convenient.
(defrecord Foo ...
will give you `->Foo` & `map->Foo` for free. The second one acce
I think defrecord has 5 downsides compared to regular map.
1. The literal of regular map is eye-friendly and portable.
However I still don't know how helpful instant literals added in clojure
1.4 is for records.
2. The construction of record depends on an order of arguments.
Sometimes, I feel th
On Sun, Jul 22, 2012 at 8:54 PM, Warren Lynn wrote:
> Could you elaborate a little bit more? I know there is a chart, but the
> chart does not tell you why.
Hmm, I thought the flowchart gave pretty good reasons, sorry :(
Records aren't as flexible and you'll lose the type anyway when
general map
I don't think you're in the minority. I prefer regular maps to records
> in general. struct-map was deprecated "a long time ago" (in Clojure
> 1.2). clojure.java.jdbc stopped using struct-map a while back - at the
> recommendation of Clojure/core - in favor of regular maps.
>
> Chas Emerick's
On Sun, Jul 22, 2012 at 6:25 PM, Lee Spector wrote:
> I know I'm in the minority but I happen to prefer maps to records, and in
> fact I really like struct-maps which I gather may (?) not be long for this
> world. Nonetheless, since you asked, following are two old messages in which
> I attempt
On Jul 22, 2012, at 7:42 PM, Warren Lynn wrote:
> I plan to change all my major data structures to records instead of plain
> maps. Since record has everything a map provides, I figure there won't be any
> harm. But is that really so? Would appreciate the opinions from people who
> know better.
http://clojure.org/special_forms
>
> (def sym "docstring" 'value)
>
> I don't think defrecord creates a Var so I don't think you can specify
> a docstring for that?
>
>
Thanks that works for symbols. I know derecord does not create a Var, but
it would still be nice to be able to have a doc s
On Sun, Jul 22, 2012 at 5:34 PM, Warren Lynn wrote:
> In Elisp, with "defvar" I can specify a docstring for a variable. I could
> not find how to do that in Clojure with "def" and "defrecord". Can someone
> show me the way? Thank you.
http://clojure.org/special_forms
(def sym "docstring" 'value)
In Elisp, with "defvar" I can specify a docstring for a variable. I could
not find how to do that in Clojure with "def" and "defrecord". Can someone
show me the way? Thank you.
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Since 2000 I've been doing web development, first with PHP and then with
Ruby On Rails. In the world of PHP, there are some frameworks, such as
Symfony, that have classes for managing forms, both generating the HTML for
the forms, and also handling the validation of the forms. In the world of
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I plan to change all my major data structures to records instead of plain
maps. Since record has everything a map provides, I figure there won't be
any harm. But is that really so? Would appreciate the opinions from people
who know better.
--
You received this message because you are subscribe
I found that if I define a protocol like this:
(defprotocol IProc
(procMethod [this] "some method"))
I can invoke it on a type either
(procMethod object)
or
(.procMethod object)
Note the prefix dot in the second case.
I like this "dot" version because that means I can replace a record field
Le 22 juil. 2012 à 18:39, larry google groups a
écrit :
Hmm, okay, so if "apply" unpacks all the arguments and feeds them all to my
anonymous function, then this should work:
(apply #([& everything] println first everything) @visitors)
This should read:
(apply #(println first %&) @
Arguments are implicit with the #(...) form, if you want explicit arguments you
can use (fn [& e] (println (first e))). But, in that case, there is no reason
for apply.
apply turns this:
(apply str ["a" "b" "c"])
into this:
(str "a" "b" "c")
If you want to use all elements in a collection
Thanks for the references.
*You have to realize that using lazy-seqs and clojure collections in
general are
non-starters since they don't yet support primitives yet and will never
be as optimized as existing Fortran (read BLAS/LAPACK) and Java code.*
Good point. I wasn't even thinking abou t
Hmm, okay, so if "apply" unpacks all the arguments and feeds them all to my
anonymous function, then this should work:
(apply #([& everything] println first everything) @visitors)
but instead I get:
Unable to resolve symbol: & in this context
[Thrown class java.lang.RuntimeExceptio
Hi,
I'm excited to release another Typed Clojure alpha.
https://github.com/frenchy64/typed-clojure
Leiningen: [typed "0.1-alpha5]
TC is usable enough to play around with, but has many limitations, some
outlined in the README.
See the examples, you can check them like so:
https://gist.github.co
+1
2012/7/20 Syed Mazhar udDaula Khurram :
> +1
>
> On Thu, Jul 19, 2012 at 10:41 PM, George McKinney
> wrote:
>> +1
>>
>>
>> On Saturday, June 9, 2012 6:03:46 PM UTC-7, aboy021 wrote:
>>>
>>> Is there anywhere that I can get a Clojure sticker?
>>
>> --
>> You received this message because you a
There are/have been some implementations of the ideas mentioned in the
original post:
1. Smalltalk - I used the Squeak implementation in college and found it
terribly frustrating when the image would crash.
2. IBM VisualAge for Java - I used this about 15 years ago. It still used
files for each
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