clojure@googlegroups.com discussions for February 2014

41	[ANN] Clojure 1.6.0-beta1

Clojure 1.6.0-beta1 is now available. Try it via - Download: http://central.maven.org/maven2/org/clojure/clojure/1.6.0-beta1 - Leiningen: [org.clojure/clojure "1.6.0-beta1"] Highlights below or see ...

Alex Miller
Feb 14, 2014 at 7:04 pm
Feb 18, 2014 at 5:40 pm

40	map semantics

Hi, I have a short question, why map builds up a LazySeq instead of an input collection as found below: user= (type (map #(mod % 3) #{3 6})) clojure.lang.LazySeq user= (type (map #(mod % 3) '(3 6))) ...

Andy C
Feb 8, 2014 at 2:19 am
Feb 9, 2014 at 5:12 pm

30	Lessons Learned from Adopting Clojure

tl; dr: I'm presenting "Lessons Learned from Adopting Clojure" in Chicago on Feb 11th: http://www.eventbrite.com/e/goto-night-with-jay-fields-tickets-10366768283?aff=eorgf Five years ago DRW Trading ...

Jay Fields
Feb 4, 2014 at 12:06 pm
Jul 21, 2014 at 10:05 pm

27	Confused by Clojure floating-point differences (compared to other languages)

(sorry if you received an earlier mail from me that was half-formed, I hit send by accident) Hi there, I'm quite new to Clojure, and was trying to do some very simple benchmarking with other ...

Glen Fraser
Feb 5, 2014 at 2:36 pm
Feb 7, 2014 at 4:52 pm

26	weird bug with cljs.core.async + macros

Hi, repo: https://github.com/txrev319/bug-report I have a really weird bug where: * (my-macro ...) == everything works * (async/go (my-macro ...)) == something weird happens A minimal failure case is ...

T x
Feb 17, 2014 at 8:28 am
Feb 19, 2014 at 2:15 am

25	fast parallel reduction into hash-set/map

Guys, I've been playing with reducers on and off for a while but have been frustrated because they don't seem to fit a particular usecase that I have in mind... specifically: getting as many ...

Jules
Feb 15, 2014 at 11:06 pm
Mar 18, 2014 at 6:10 am

22	Looking for advice to fine tune a simple function

Hi, Disclaimer - I am completely new to Clojure. I just implemented my very first (simple) program, letting me find out, from a GPX file, how much time is spent in the various heart rate zones. Now ...

Laurent Droin
Feb 16, 2014 at 10:46 pm
Feb 19, 2014 at 1:37 pm

20

range-sum

Hi all, I often see this code for summing up a range from 0-N : `(reduce + (range N))` However there is a much faster way for this : `(/ (* N (dec N)) 2)` Do you think this should be in the language ...

Jim - FooBar();
Feb 6, 2014 at 10:59 am
Feb 13, 2014 at 11:18 pm

18	[ANN] Sente - Clojure(Script) + core.async + WebSockets/Ajax

Hi folks, Quick post to announce a new lib release: https://github.com/ptaoussanis/sente From the README: *Sente* is small client+server library that makes it easy to build *reliable, ...

Peter Taoussanis
Feb 26, 2014 at 1:57 pm
Aug 17, 2014 at 7:26 am

17	[ANN] Gorilla REPL initial release (0.1.2)

Hi All, I'm pleased to announce the first release of Gorilla REPL, a rich REPL in the notebook style: https://github.com/JonyEpsilon/gorilla-repl From the README: "You can think of it like a pretty ...

Jony Hudson
Feb 19, 2014 at 9:23 pm
Mar 6, 2014 at 8:53 pm

16	unconditional append to end

Consider the following: (cons 1 '(2 3 4)) == (1 2 3 4) (cons 1 [2 3 4]) == (1 2 3 4) (conj '(a b c) 1) == (1 a b c) (conj '[a b c] 1) == [a b c 1] ================================ Now, I would like ...

T x
Feb 8, 2014 at 12:20 am
Feb 10, 2014 at 7:53 pm

16	Coverage tools in Clojure

Hi, I'm looking for coverage reporting in Clojure. I've been using Cloverage[1] but I'm just wondering if there are any other coverage tools? Aaron [1] https://github.com/lshift/cloverage

Aaron France
Feb 2, 2014 at 9:34 pm
Feb 5, 2014 at 5:52 am

15	Latest web framework for clojure

Hi All, I have been reading clojure for sometime now. I am at a point where I want to learn a web framework. I see many options available for clojure where few are built upon others. So if I am to ...

Aravindh S
Feb 26, 2014 at 1:13 am
Mar 1, 2014 at 5:02 pm

14	Do you recommend the book: "Web Development with Clojure"

Hi all, Have any of you read the book *Web Development with Clojure*? http://www.amazon.com/Web-Development-Clojure-Build-Bulletproof/dp/1937785645 There's only one review on amazon, and it's a ...

Erlis Vidal
Feb 19, 2014 at 3:54 pm
Feb 28, 2014 at 10:59 am

14	GSoC 2014: org applications now open

Hello, all, Apparently, it's already time for organisations to apply for Google Summer of Coder 2014 [1]. This is a great program, and there have been several notable projects that have benefited as ...

Daniel Solano Gómez
Feb 3, 2014 at 7:59 pm
Feb 14, 2014 at 2:38 pm

14	Re: order of returned values from keys and vals

Actually, http://dev.clojure.org/jira/browse/CLJ-1302 "keys and vals consistency not mentioned in docstring" was declined, with the comment "The absence of this property in the docs is correct. You ...

Matching Socks
Feb 1, 2014 at 2:32 am
Feb 2, 2014 at 4:58 am

12	[$Bounty] Emacs plugin for Typed Clojure

Hi, I need a relatively straightforward Emacs plugin for Typed Clojure written. I'm offering a $200US bounty. If you would also like to see this, please bump up the $$. If you're interested in ...

Ambrose Bonnaire-Sergeant
Feb 11, 2014 at 5:02 pm
Feb 12, 2014 at 4:46 pm

12	ISeq documentation and mutual deftypes.

I've been playing with some code recently. I was wondering how hard would it be to implement, for example ISeq in clojure. The plan was to use deftype and a few bits of other code. The ISeq interface ...

Phillip Lord
Feb 7, 2014 at 12:00 pm
Feb 12, 2014 at 11:36 am

11	Can't start repl with Leiningen

Hello Clojure users! I have a problem with running *$lein repl* After some time I get: *REPL server launch timed out.* *$lein run myproject* works fine Leiningen and Java versions are: *$lein ...

Matej Fröbe
Feb 24, 2014 at 5:26 am
Mar 2, 2014 at 10:27 am

11	Why do I have to register an ImageReader?

I have no background with Java so I tend to suffer pain when dealing with it. I am trying to create a thumbnail for an image, but my code dies on the :post assertion of this function: (defn ...

Larry google groups
Feb 27, 2014 at 8:09 pm
Feb 27, 2014 at 10:41 pm

11	object identity

This is vaguely related to David's posts about om/react, where he talks about optimizing state change tracking by checking object identity on immutable objects: deep compares can be avoided if same ...

Brian Craft
Feb 24, 2014 at 9:00 pm
Feb 27, 2014 at 3:39 pm

11	Email delivery libs not working

Hi, I'm new to clojure and have got a productive handle on CRUD, sessions, routing, writing functions. Last couple things are email delivery, image processing (resizing). So I looked on the ...

The Dude (Abides)
Feb 24, 2014 at 10:34 am
Feb 25, 2014 at 11:00 am

11	OT: Enterprise Schedulers

Hi Everyone, This is a wee bit off topic, but given the sorts of problems the Clojure community likes to solve and the enterprise background of a lot of people I thought this list might be a good ...

Adrian Mowat
Feb 10, 2014 at 1:30 pm
Feb 13, 2014 at 1:56 pm

10	I'm trying to make proper urls, but I seem to be failing at it.

I'm building a site and I would like to allow users to create and account, and I would like them to have an option to use whitespaces in their handle. Apparently I am doing something way wrong here, ...

David Toomey
Feb 25, 2014 at 7:15 am
Mar 13, 2014 at 5:44 am

10	A faster clojure startup

Here're some notes on the lean compiler I've been working on for clojure-objc http://galdolber.tumblr.com/post/78110050703/reduce-startup Feedback's welcome -- You received this message because you ...

Gal Dolber
Feb 28, 2014 at 3:17 pm
Mar 7, 2014 at 12:48 pm

10	Image Resizer lib exception error

Hi, I'm trying to use Image Resizer and am goofing up on the syntax somewhere: (defn update-profile [firstname lastname email file] (let [member-id (session/get :member-id) redirecturl (str ...

The Dude (Abides)
Feb 25, 2014 at 12:32 pm
Feb 28, 2014 at 9:29 pm

9	case statement and java constants

I'm having some trouble with java constants in a case statement. I know I could use condp, but these are things I could put in a java switch statement and so it's annoying to give up constant time ...

Adam Clements
Feb 28, 2014 at 4:15 pm
Mar 2, 2014 at 5:32 pm

9	ANN: om-sync

I've been banging the drum about Om & modularity for a while now and I've come up with the very beginning of a simple reusable component that I think demonstrates the power of Om's emphasis on ...

David Nolen
Feb 14, 2014 at 2:55 am
Feb 24, 2014 at 6:13 am

9	(series of swap! on atom) ==> single swap!

Hi, Consider the following block of code: ## Sample Code (ns test) (def some-atom (atom {:tag :language :name "Clojure" :better-than ["scheme" "java" "ruby" "python"]})) (defn demo-func [] (swap! ...

T x
Feb 16, 2014 at 12:04 am
Feb 17, 2014 at 2:16 pm

8	Macro writing macro fails with CLJS

Hi, I've written a macro to build inline expanded math expressions and it's working well in Clojure, however fails with a compile exception in CLJS. I'm not sure if this is a shortcoming of the CLJS ...

Karsten Schmidt
Feb 23, 2014 at 3:59 pm
Feb 27, 2014 at 10:51 pm

8	why Clojure/Lisp is so fast

Hi, There are many performance benchmarks showing that compiled CLISP is almost as fast as C++ or Clojure as Java. Being a dynamically typed language though, I wonder how it is possible. Is it ...

Andy C
Feb 19, 2014 at 2:59 am
Feb 19, 2014 at 11:24 am

8	Alternative ->> macro for threading sequences?

Hi folks, I seem to regularly find myself writing - threaded code that follows similar patterns: (- things (map wrangle) (map pacify) (filter effable) (map #(aggravate % :bees :sharks)) (reduce ...

Korny Sietsma
Feb 6, 2014 at 2:41 pm
Feb 8, 2014 at 6:30 pm

8	ANN: Reagent 0.3.0 - now with async rendering

Reagent, a minimalistic interface between React.js and ClojureScript, is now at 0.3.0. The new release adds a couple of bugfixes, and async rendering. Read more here ...

Dan Holmsand
Feb 3, 2014 at 2:24 pm
Feb 5, 2014 at 10:45 pm

7	Uberjar woes

Hi Everyone, I've been having trouble creating an uberjar of a project and I'm hoping someone here can point me toward a solution. After cleaning out the target directory (with "lein clean") and ...

Tom Connors
Feb 27, 2014 at 9:05 pm
Apr 14, 2014 at 1:38 pm

7	[ANN] clojure.test.check (previously, simple-check)

I'm happy to announce the first release of the newest Clojure contrib library: test.check [1]. Previously named simple-check [1], test.check is a property-based testing library, based on QuickCheck ...

Reid Draper
Feb 27, 2014 at 5:22 pm
Mar 3, 2014 at 10:31 pm

7	The future of CongoMongo?

(this is a variant of a discussion I started on the congomongo-dev mailing list a while back) Do you use MongoDB with Clojure? Which library do you use? I seem to have become the de facto primary ...

Sean Corfield
Feb 26, 2014 at 11:04 pm
Feb 28, 2014 at 7:37 pm

7	Om: trouble with goog reference

I'm having trouble with the Om basic tutorial Higher Order Components<https://github.com/swannodette/om/wiki/Basic-Tutorial#wiki-higher-order-components using emacs and a slightly modified version of ...

Boz
Feb 24, 2014 at 1:22 am
Feb 28, 2014 at 7:30 am

7	Namespace Problems org-mode/org-babel

Hi, I'm trying to use org-mode with clojure. However, my problem is, that all functions are evaluated in the 'user' namespace. Basically, I have something like this: #+BEGIN_SRC clojure (ns ...

Volker Strobel
Feb 19, 2014 at 7:06 pm
Feb 21, 2014 at 9:36 pm

7	call clojure from java

Hi do you know how I can call a clojure script from a java method ? Thanks, Sorin. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, ...

Sorin cristea
Feb 18, 2014 at 11:42 am
Feb 18, 2014 at 1:26 pm

7	query on clojure maps / vectors

Hi, Preemptive: :-) * I'm not looking for datomic. * I'm also not looking for sqlkorma. * An "in-memory" data-log might be what I'm after. Context: I'm reading ...

T x
Feb 14, 2014 at 1:28 am
Feb 15, 2014 at 7:24 pm

7	How would I write it with concurrency

Hi I have a simple code that generates a list of maps: (defn test-data [nsamples] (loop [acc []] (if ( = (count acc) nsamples) acc (recur (concat acc (session)))))) The session function returns a ...

Haim Ashkenazi
Feb 10, 2014 at 6:47 pm
Feb 11, 2014 at 5:22 am

7	Why do I get stackoverflow error?

Hi, I am working through the 4clojure questions, I have a few different solutions to problem 87 but all of them run out of stack space. I tried to convert to using recur but I still have the ...

Andy Smith
Feb 3, 2014 at 9:19 pm
Feb 4, 2014 at 5:18 pm

7	dynalint, lein-dynalint 0.1.2 - Warn on (zipmap (keys m) (vals m))

Hi, If you're interested in refactoring out instances of (zipmap (keys m) (vals m)), then dynalint 0.1.2 may help. [com.ambrosebs/dynalint "0.1.2"] I've added a simplistic case that warns if a ...

Ambrose Bonnaire-Sergeant
Feb 1, 2014 at 1:38 pm
Feb 1, 2014 at 3:52 pm

6	Help with data structures and dereferencing

new to clojure, in the process of unlearning years of OO. sorry for the long post. struggling with a design/impl and hoping to get some outside opinions so I can understand my options (clojure ...

Robert Quinn
Feb 25, 2014 at 2:23 pm
Feb 27, 2014 at 5:22 pm

6	Clojure code for detecting overlap of 3d shapes (specifically tetrahedra)?

Can anyone point to Clojure code for detecting when two 3d shapes overlap, when given the [x y z] vertices of the two shapes? The specific case I care about will always involve two regular tetrahedra ...

Lee Spector
Feb 13, 2014 at 11:03 pm
Feb 26, 2014 at 12:13 am

6	ANN: Om 0.4.0

Happy to announce a new release of Om. There are some breaking changes mostly to make the API more uniform - om.core/root was needlessly different from om.core/build. The biggest and most exciting ...

David Nolen
Feb 14, 2014 at 6:02 am
Feb 15, 2014 at 8:40 pm

6	CLJX & CLJS problem

I've been busy working on a few libraries targetting both Clojure & ClojureScript, however so far have only tested the CLJ side and now that it comes to addressing CLJS am running in circles (and on ...

Karsten Schmidt
Feb 13, 2014 at 11:22 am
Feb 15, 2014 at 4:52 pm

6	[ANN]: Buddy 0.1.0-beta3: Authentication, Authorization & Signing library for Clojure.

Hi! Buddy is an authentication, authorization and signing library for clojure, designed with simplicity in mind. Features / Sub libraries: * Modular Authentication (implemented using protocols). * ...

Andrey Antukh
Feb 9, 2014 at 4:55 pm
Feb 15, 2014 at 2:57 pm

6	[ANN] garden-watch

*garden-watch* <https://github.com/twashing/garden-watch is very similar to hiccup-watch <https://github.com/twashing/hiccup-watch (previous ...

Timothy Washington
Feb 5, 2014 at 2:04 am
Feb 6, 2014 at 2:08 pm

6	ANN: [lein-describe 0.1.0] plugin for displaying detailed information about Clojure projects

lein-describe Have you ever be involved in a Clojure project and wondered "how are these dependencies used?" or "what do these plugins do?". This plugin can help you answer those questions ...

Joel Holdbrooks
Feb 3, 2014 at 3:56 am
Feb 6, 2014 at 6:14 am

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