It is better to have 100 functions operate on one data structure than
10 functions on
10 data structures.
-- Alan Perlis
Why so? How is it advantageous?
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On Thu, Sep 2, 2010 at 6:29 PM, HB wrote:
> Usually we create some domain entities, map them with Hibernate/
> iBatis.
> I don't know how a Clojure application would be build without objects.
I wonder if watching this talk by Rich Hickey will help?
http://www.infoq.com/presentations/Are-We-There
Hello,
I've tried writing a a solution to shootout "fannkuch" (http://
shootout.alioth.debian.org/u32/performance.php?test=fannkuchredux),
however I seem to have a bug in the checksum. Is it just the order of
permutations or am I missing something?
Code at http://bitbucket.org/tebeka/shootout-clj
I'd go over SICP, though it not in Clojure but in Scheme - it will
show you how to "think" functional.
On Sep 2, 6:29 pm, HB wrote:
> Hey,
> I finished reading "Programming Clojure" and "Practical Clojure" and
> I'm hooked :)
> Please count me in the Clojure club.
> But I failed how to think in C
By union do you mean union as in sets, or just smashing the two lists together?
--Robert McIntyre
On Thu, Sep 2, 2010 at 11:10 AM, mlimotte wrote:
> Hi.
>
> I'd like to do a union of some sequences using my own comparison
> function. Similar to supplying a Comparator in Java. The things
> bein
I highly recommend "Joy of Clojure". It's a good "2nd book on clojure".
It shows you the "why things are the way they are", and how to
do things the clojure way as much as possible.
On Thu, Sep 2, 2010 at 9:29 PM, HB wrote:
> Hey,
> I finished reading "Programming Clojure" and "Practical Clojure"
So in idiomatic Clojure applications, maps are considered like
objects?
And to operate on them we pass them to functions?
On Sep 3, 4:55 am, David Nolen wrote:
> On Thu, Sep 2, 2010 at 9:29 PM, HB wrote:
> > Hey,
> > I finished reading "Programming Clojure" and "Practical Clojure" and
> > I'm ho
On Thu, Sep 2, 2010 at 9:29 PM, HB wrote:
> Hey,
> I finished reading "Programming Clojure" and "Practical Clojure" and
> I'm hooked :)
> Please count me in the Clojure club.
> But I failed how to think in Clojure.
> My main career is around Java web applications (Hibernate, Spring,
> Lucene) and
On Thu, Sep 2, 2010 at 7:47 PM, Rayne wrote:
> I've got a curious little bit of a memory leak of sorts that I'm
> trying to narrow down.
>
> I have an application (betcha can guess what it is if you know me from
> IRC :>) that, in order to reload plugins, requires each of them with
> the :reload o
Hey,
I finished reading "Programming Clojure" and "Practical Clojure" and
I'm hooked :)
Please count me in the Clojure club.
But I failed how to think in Clojure.
My main career is around Java web applications (Hibernate, Spring,
Lucene) and Web services.
Lets not talk about Java web frameworks nei
This is amazing, thank you all guys :)
On Sep 2, 7:33 pm, Sean Allen wrote:
> a few off the top of my head:
>
> @fogus
> @planetclojure
> @disclojure
> @stuartholloway
> @liebke
> @richhickey
>
> blog.fogus.me
> dosync.posterous.com
> m.3wa.com
> nathanmarz.com
>
>
>
> On Thu, Sep 2, 2010 at 12:2
On Sep 2, 5:28 pm, Sean Corfield wrote:
> On Wed, Sep 1, 2010 at 9:46 PM, John Fingerhut
> wrote:
> > You can see a brief summary of results comparing
> > run time, memory, and code size against "Java 6 -server" here:
> >http://shootout.alioth.debian.org/u32/benchmark.php?test=all〈=clo...
>
>
On Wed, Sep 1, 2010 at 5:41 AM, Remco van 't Veer wrote:
> If you want something old school like CFML you might consider using
> plain JSP and taglibs. These are modeled after CFML and available on
> every web container by default.
FWIW, I've created a small CFML/Clojure bridge so now I can deve
On Wed, Sep 1, 2010 at 9:46 PM, John Fingerhut wrote:
> You can see a brief summary of results comparing
> run time, memory, and code size against "Java 6 -server" here:
> http://shootout.alioth.debian.org/u32/benchmark.php?test=all&lang=clojure&lang2=java
Very interesting. Clojure is faster than
Awesome! It doesn't have to be much. Searching for examples and docs
is the most important thing, obviously. I'd request that if you're
going to have any single format, JSON would make me the happiest.
Clojure data structures would be cool, but that's kind of limited to
Clojure.
My vote is on JSON
On Sep 1, 9:46 pm, John Fingerhut wrote:
> Thanks to many people on this list in Aug 2009 who helped improve my code,
> to Johannes Friestad for writing a nice fast Clojure program using deftype
> for the n-body problem, to Isaac Gouy for setting up the shootout web site
> to accept Clojure subm
I've got a curious little bit of a memory leak of sorts that I'm
trying to narrow down.
I have an application (betcha can guess what it is if you know me from
IRC :>) that, in order to reload plugins, requires each of them with
the :reload option whenever you ask them to be reloaded.
Each of thes
Hi All,
As Zach announced in the ClojureDocs mailing list [1], I'm going to be
working on the API for ClojureDocs.org in the coming future. I was
hoping to get some feedback regarding what people wanted to see for an
API for ClojureDocs:
- What kind of features would you like to see in the Clojure
On Sep 2, 5:24 pm, Stuart Sierra wrote:
> You'll need to adjust the version numbers for the Clojure
> dependencies. These are configured in clojure-contrib/modules/parent/
> pom.xml at the line:
>
>
> 1.2.0
>
> Change that to 1.3.0-SNAPSHOT for the latest snapshot (including the
> ones you
You'll need to adjust the version numbers for the Clojure
dependencies. These are configured in clojure-contrib/modules/parent/
pom.xml at the line:
1.2.0
Change that to 1.3.0-SNAPSHOT for the latest snapshot (including the
ones you build locally) or set it to a specific snapshot version
I usually git pull clojure, ant, mvn install, then git pull and build
clojure-contrib against it. There used to be a -Dclojure.jar=...
option mentioned in README.txt for the contrib. The new modular
version, however, doesn't mention it, just saying, use these contrib
versions for those clojure on
Shameless self-promotion: http://clojurls.com
(like hackurls.com, but only clojure content only)
On 2 Sep., 18:21, HB wrote:
> Hey,
> Would you please recommend some good Blogs/Twitter accounts about
> Clojure?
> Thanks.
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Grou
Hi,
On Thu, Sep 2, 2010 at 17:21, HB wrote:
> Hey,
> Would you please recommend some good Blogs/Twitter accounts about
> Clojure?
I irregularly maintain a list here: https://twitter.com/#/list/otfrom/clojure
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Special thanks to Andrey Fedorov for making this happen for us!
If you are in the tri-state area and would like to present at the
Clojure NYC @google, please contact me with the topic and we'll get it
setup.
Thanks,
Eric
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Grou
http://planet.clojure.in/ is all i really need :)
On 2 Sep., 18:21, HB wrote:
> Hey,
> Would you please recommend some good Blogs/Twitter accounts about
> Clojure?
> Thanks.
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On Wed, 1 Sep 2010 15:14:45 -0700 (PDT)
Alyssa Kwan wrote:
> I'll go one step further and say that we shouldn't have to call
> "persist namespace". It should be automatic such that a change to the
> state of an identity is transactionally written.
>
> Let's start with refs. We can tackle the o
good suggestions guys!! thx so much
On Sep 2, 10:44 am, Justin Kramer wrote:
> A couple other things:
> 1) (apply identity ...) is the same as (first ...)
> 2) Consider using the ->> macro to clean up the let
>
> Here's a quick rewrite:
>
> (defn make-target
> ([file channel sweepidx]
> (
a few off the top of my head:
@fogus
@planetclojure
@disclojure
@stuartholloway
@liebke
@richhickey
blog.fogus.me
dosync.posterous.com
m.3wa.com
nathanmarz.com
On Thu, Sep 2, 2010 at 12:21 PM, HB wrote:
> Hey,
> Would you please recommend some good Blogs/Twitter accounts about
> Clojure?
> Th
I am trying to build a rest webservice using compojure/ring and json
marshalling. the consumers of the web service are written in java and
we are thinking of using apache cxf.
when i am trying to send an object using jsonprovider , it is getting
correctly parsed at the client end but on using ring
On Thu, 2 Sep 2010 05:54:26 -0700 (PDT)
Glen Rubin wrote:
> I defined a fn whose execution depends on the number of parameters
> passed to it. It works fine! I am just concerned that I am doing
> this in a way that is not as concise as it could or should be. Here
> is my fn:
>
> (defn make-ta
Hey,
Would you please recommend some good Blogs/Twitter accounts about
Clojure?
Thanks.
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Note that posts from new members are moderated - plea
Ah...so I looked into the RT code a bit more and you're right. If we
passed in a Java array or a Java String then it would need to be
converted to a Seqable class first then we could have a seq() method
to call.
Thanks,
Timothy
On Thu, Sep 2, 2010 at 9:43 AM, Armando Blancas
wrote:
> Probably s
Hi.
I'd like to do a union of some sequences using my own comparison
function. Similar to supplying a Comparator in Java. The things
being compared are Objects from a Java library that I don't control,
so I can't just override the equals function on the class, for
example.
Would aprecaite any s
A couple other things:
1) (apply identity ...) is the same as (first ...)
2) Consider using the ->> macro to clean up the let
Here's a quick rewrite:
(defn make-target
([file channel sweepidx]
(make-target file channel sweepidx 0))
([file channel sweepidx startidx]
(make-target file
Probably so the list can be compared to anything and thus o may not
implement Seqable, like:
user=> (.equals '() nil)
false
On Sep 1, 4:14 pm, Timothy Baldridge wrote:
> While examining the Clojure source I came across this line in the
> EmptyList class:
>
> public boolean equals(Object o) {
Meant to thank you for this. It was very timely for me, and very
understandable.
On Thu, Sep 2, 2010 at 10:34 AM, Brian Marick wrote:
> I've written a short tutorial for clojure.zip:
>
>
> http://www.exampler.com/blog/2010/09/01/editing-trees-in-clojure-with-clojurezip/
>
> -
> Brian Marick
I've written a short tutorial for clojure.zip:
http://www.exampler.com/blog/2010/09/01/editing-trees-in-clojure-with-clojurezip/
-
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
Author of /Programming Cocoa with Ruby/
www.exampler.com, www.exampler.com/blog,
>It checks the value against memory. If it's
>the same, commit data store changes. If not, retry after refreshing
>memory with the current contents of the store.
May I suggest we take a page from the CouchDB book here? In addition
to having a "id" each ref also has a revision id. Let's say the i
Hello Glen,
I'd use the first two forms to set startidx and size and then call the
"full" form:
(def inf java.lang.Double/POSITIVE_INFINITY)
(defn make-target
"Parses text file for single sweep specified by sweepidx. If size
is
not specified will parse till end of sweep. If startidx and si
I defined a fn whose execution depends on the number of parameters
passed to it. It works fine! I am just concerned that I am doing
this in a way that is not as concise as it could or should be. Here
is my fn:
(defn make-target
"Parses text file for single sweep specified by sweepidx. If size
Persistant variable handling is one of the things which I have spent much
time on as a beginner and former SQL-illiterate (Among getting the swank to
finally work (it's a dream!)). I have however got into databases quite a bit
among the way - but it was not my main goal and it has taken some time f
Thanks! That worked for me. Understood on the precautions about these
things not being immutable, and thus potentially unsafe as hash keys (and
anything else that expects immutability, whether that is obvious or not).
This raises the question in my mind -- will there be something in Clojure,
per
Thanks to many people on this list in Aug 2009 who helped improve my code,
to Johannes Friestad for writing a nice fast Clojure program using deftype
for the n-body problem, to Isaac Gouy for setting up the shootout web site
to accept Clojure submissions, and to my having more time than good sense
While examining the Clojure source I came across this line in the
EmptyList class:
public boolean equals(Object o) {
return (o instanceof Sequential || o instanceof List) &&
RT.seq(o) == null;
}
What's up with the RT.seq(o) == null? Why don't we do this instead:
public boolea
I'll go one step further and say that we shouldn't have to call
"persist namespace". It should be automatic such that a change to the
state of an identity is transactionally written.
Let's start with refs. We can tackle the other identities later.
The API is simple. Call (refp) instead of (ref
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