Bonus: rename the library "immutable-long-map", then you can have a section
in the readme titled "why the long map?"
On Monday, 21 April 2014 13:12:05 UTC+1, Alex Miller wrote:
>
> This is great stuff. Why not longs? Are you going for space savings?
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(This has been discussed before but as this is fairly subjective I am
interested in whether people's opinion has changed)
What are people's experiences around using keywords or defined accessors
for navigating data structures in Clojure (assuming the use of maps)? Do
people prefer using "raw"
I've personally always used keywords. I don't see any value in aliasing
:foo to foo. For navigating nested maps, get-in, update-in and assoc-in
with keywords seem natural and practical to me.
On 22 April 2014 10:43, Colin Yates wrote:
> (This has been discussed before but as this is fairly subj
Thanks Dan,
One benefit is compile time safety and the refactoring I mentioned.
But yes, I am coming around to the notion of just using raw keywords...
On Tuesday, April 22, 2014 10:49:33 AM UTC+1, Dan Kersten wrote:
>
> I've personally always used keywords. I don't see any value in aliasing
>
there is really no reason to use `get-in` with keywords/symbols as they
know how to look themselves up...in other words, you don't need to pay
for any polymorphic calls :
(get-in [:a :b :c :d] someMap) = (-> someMap :a :b :c :d)
Jim
On 22/04/14 10:49, Daniel Kersten wrote:
For navigating nest
Nice.
On Tuesday, April 22, 2014 11:36:06 AM UTC+1, Jim foo.bar wrote:
>
> there is really no reason to use `get-in` with keywords/symbols as they
> know how to look themselves up...in other words, you don't need to pay
> for any polymorphic calls :
>
> (get-in [:a :b :c :d] someMap) = (-> some
I would carefully question the desire for user stabilizability in this
fashion, and then work through the quality attributes and design
constraints for what you're trying to achieve.
If what you end up needing is in fact an elisp-like system with
closed/sandboxed functionality, one way to achie
When using lein run, I get the following measurements:
1 threads took 50292 milliseconds
2 threads took 28797 milliseconds
4 threads took 19531 milliseconds
6 threads took 16973 milliseconds
7 threads took 15761 milliseconds
8 threads took 15071 milliseconds
While if I use lein u
Codemirror is good too for this.
http://codemirror.net
Jony
On Tuesday, 22 April 2014 05:30:23 UTC+1, Brian Craft wrote:
>
> Slightly off topic.
>
> Anyone know of a simple browser-based lisp editor that can be embedded in
> a page? Indenting & matching parens would be sufficient. I don't nee
I recall reading that `lein run` uses JVM options optimised for startup
time, not performance - as it's intended for use in development, not
production. I can't seem to find where I read that though ...
Jony
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Hi Colin,
Bastien writes:
> That said, there are some quirks. I'm sick now and cannot
> fix those problems, but please report them as github issues
> if any.
Bozhidar just merged a fix that I sent, you can check it here:
https://github.com/clojure-emacs/clojure-mode/
Otherwise just wait till
Obvious not very neat, but I tried as a first hack to do something with the
command line parameters with:
(doseq [type args]
This does not work. Why not?
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On Apr 22, 2014, at 10:01 AM, Jony Hudson wrote:
> I recall reading that `lein run` uses JVM options optimised for startup time,
> not performance - as it's intended for use in development, not production. I
> can't seem to find where I read that though ...
Somebody with actual knowledge of w
This snippet is wholly incomplete. Can you please provide a more
complete, testable example as well as a detailed description of the
error you're seeing?
On Tue, Apr 22, 2014 at 4:48 PM, Cecil Westerhof wrote:
> Obvious not very neat, but I tried as a first hack to do something with the
> command
One hates to be rude but:
I've read all your questions over the past couple of weeks and it seems it
would behoove you to pick up a book. There are plenty of recommendations on
Google and archived threads.
Good day.
On 22 Apr 2014 16:48, "Cecil Westerhof" wrote:
> Obvious not very neat, but I t
Thanks Bastien - I will wait until it lands in ELPA and try it then.
On Tuesday, April 22, 2014 3:11:15 PM UTC+1, Bastien Guerry wrote:
>
> Hi Colin,
>
> Bastien > writes:
>
> > That said, there are some quirks. I'm sick now and cannot
> > fix those problems, but please report them as github i
On Tuesday, April 22, 2014 4:14:58 AM UTC-5, tcrayford wrote:
>
> Bonus: rename the library "immutable-long-map", then you can have a
> section in the readme titled "why the long map?"
>
> On Monday, 21 April 2014 13:12:05 UTC+1, Alex Miller wrote:
>>
>> This is great stuff. Why not longs? Are y
Clojure is designed to make your data accessible generically without
getters/setters or other custom APIs so I would encourage direct access via
keywords over accessor fns.
One consequence of this is that fns using a data structure have a direct
coupling to the structure of the data. I prefer
2014-04-22 16:50 GMT+02:00 Lee Spector :
>
> On Apr 22, 2014, at 10:01 AM, Jony Hudson wrote:
>
> > I recall reading that `lein run` uses JVM options optimised for startup
> time, not performance - as it's intended for use in development, not
> production. I can't seem to find where I read that t
https://github.com/technomancy/leiningen/blob/master/leiningen-core/src/leiningen/core/project.clj#L415
TieredCompilation is the relevant one.
On Tue, Apr 22, 2014 at 10:01 AM, Jony Hudson wrote:
> I recall reading that `lein run` uses JVM options optimised for startup
> time, not performance
By default, lein run will use tiered compilation, which starts faster, but
is not as fast.
https://github.com/technomancy/leiningen/wiki/Faster
On Tuesday, April 22, 2014 9:01:34 AM UTC-5, Jony Hudson wrote:
>
> I recall reading that `lein run` uses JVM options optimised for startup
> time, no
Thanks Alex.
Yep, I think Prismatic's schema is going to be invaluable for making the
data structure less opaque and providing the comfort that I have lost from
the lack of a rigorous and extensive strict type system (carefully avoiding
the use of "strong", "lose", "static" and "dynamic" :)).
2014-04-22 16:55 GMT+02:00 Moritz Ulrich :
> This snippet is wholly incomplete. Can you please provide a more
> complete, testable example as well as a detailed description of the
> error you're seeing?
>
It was a stupid mistake of me. When making the following example:
(defn -main [& args]
I have an app I'm building. It calls System/exit. That doesn't works so
well if I'm debugging in the REPL however.
What's the preferred method of determining whether I'm in REPL mode
interaction vs running as a standalone app?
Also, long as I'm asking and being lazy, does the -main function r
Hello,
Does anyone know a Linux distro which I can use to learn clojure and which
has inteljij aviable.
I really like to test the cursive plugin
Roelof
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I wrote a thin Om wrapper around CodeMirror with Clojure syntax support and
paren matching:
https://github.com/pbostrom/om-codemirror
It uses a slightly outdated version of CodeMirror from Nov 2013 but it
should be good enough to get started if you want to go that route. It
includes two hotkeys:
I have a ‘little’ to learn. ;-) I have worked with a lot of languages,
including Lisp. I was thinking about the following books (in that order):
- Practical Clojure
- Clojure in Action
- The Joy of Clojure
- Clojure Programming
- Programming Clojure
Someone told me it was better to start with Prog
Some will say that Joy of Clojure is not the best choice for the newcomer.
I read all the books more in your list more than once and had the better
comprehension with JoC.
The important thing is that I didn't get Clojure reading the first or second
book. I just really understood after read the
2014-04-22 20:32 GMT+02:00 Plínio Balduino :
> Some will say that Joy of Clojure is not the best choice for the newcomer.
>
> I read all the books more in your list more than once and had the better
> comprehension with JoC.
> The important thing is that I didn't get Clojure reading the first or
>
I think you should care about learning the concepts involved in clojure and
functional programming in general. "Getting" clojure after you have done
some haskell, lisp or erlang is supposed to be a breeze, so you need to get
to the basics!
I bet that most of the books will teach you almost the sam
Hi
I would recommend to take Programming Clojure or Clojure Programming first,
and after that take the The Joy of Clojure (2ed)...
On Tue, Apr 22, 2014 at 8:18 PM, Cecil Westerhof wrote:
> I have a ‘little’ to learn. ;-) I have worked with a lot of languages,
> including Lisp. I was thinking ab
I started with JoC and reading Programming Clojure now. Both give pretty
good introduction to the language and its capabilities. JoC is full of
not-so-simple examples, but they make one's brain work, show the clojure
way, and are good for people how know they way around programming in
general.
Exactly, Thiago.
I just understood Clojure after dive into Clojure. The books helped a lot,
but alone they are almost useless.
Plínio
On Tue, Apr 22, 2014 at 3:53 PM, Thiago Massa wrote:
> I think you should care about learning the concepts involved in clojure
> and functional programming in
JoC is like SICP, just really worth doing, not necessarily immediately
practical.
On Tue, Apr 22, 2014 at 3:16 PM, Plínio Balduino wrote:
> Exactly, Thiago.
>
> I just understood Clojure after dive into Clojure. The books helped a lot,
> but alone they are almost useless.
>
> Plínio
>
>
> On Tue
I've used Intellij on Arch and Ubuntu, so I know it works on those (or at least
it did - I switched to a Mac 18 months ago).
Intellij runs on the JVM, so it should work on any distro in theory. JetBrains
has a good knowledge base and forums on their site, so you can probably find
details on co
In general, there's always a mismatch between linux package managers and
the realities of java stuff.
So, I use apt-get (in ubuntu) to install java itself, and I throw
everything else java-related (maven, ant, eclipse, whatever) in $HOME/opt,
with symlinks to $HOME/bin (that's also where I put the
Yeah, JoC is my favorite clojure book, but I agree it's not the best to start
with.
Let me throw a couple others into the mix that haven't been mentioned yet. If
you come from a solid OO background, I highly recommend Brian Marick's book
"Functional Programming For the Object Oriented programm
Howdy --
Trying to use core.async's mix facility, one difficulty I've run into is
the lack of a means to close the output channel only after al inputs have
been exhausted. In the interim, I've ended up using the below instead --
which lacks some of the facilities provided by the mix interface (
I believe this is a problem in REPL-y, which is used when using 'lein repl'.
I used Cider to start a nREPL server, then used 'leing repl :connect' to
get the REPL-y interface.
The problem was evident in the latter, but not the former. I opened an
issue for REPL-y.
Thanks again, Steve
--
You
Hi Cecil
I had read almost all books of you list and without a doubt clojure
programming (o'reilly) is the best book for me ;)
Andrey
2014-04-22 20:18 GMT+02:00 Cecil Westerhof :
> I have a ‘little’ to learn. ;-) I have worked with a lot of languages,
> including Lisp. I was thinking about the
On Apr 22, 2014, at 5:37 PM, Greg D wrote:
> I believe this is a problem in REPL-y, which is used when using 'lein repl'.
>
> I used Cider to start a nREPL server, then used 'leing repl :connect' to get
> the REPL-y interface.
>
> The problem was evident in the latter, but not the former. I
I definitely mean "user customizibility" - sorry for the insane typo.
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Don't install intellij from and package manager (it will probably be out of
date/not there), just install java then download it from the
intellij/cursive website. Its self updating anyway and should work on any
distro and on windows that way.
On Wednesday, April 23, 2014 5:11:54 AM UTC+12, Roel
Thanks everyone, this is very helpful.
On Tuesday, April 22, 2014 6:53:45 AM UTC-7, Jony Hudson wrote:
>
> Codemirror is good too for this.
>
> http://codemirror.net
>
>
> Jony
>
>
> On Tuesday, 22 April 2014 05:30:23 UTC+1, Brian Craft wrote:
>>
>> Slightly off topic.
>>
>> Anyone know of a simp
The comments here are basically spot on - I'm actually not sure what
JetBrains' distro coverage is like, but as far as I know IntelliJ should
work on most major distros. I've personally used it on Ubuntu and Suse.
It's been a while since I used Java on a linux desktop (I'm on a Mac now
too) but whe
Thanks, Leif, for offering these office hours.
I just wrapped up my office hour with Leif. We chatted about Clojure
community and open source project stuff, as that is what I needed help
with, and he was very helpful in brainstorming ideas. If he offers office
hours again, I'd recommend it high
Howdy Charles,
For a static mix of sources there's async/merge [1], and it behaves the
almost exactly way you describe, impl here [2].
Stepping back, the source chan-of-chans being closed represents value
production being fully in flight, while the merged channel being closed
represents consump
For the purposes of academic publications (in areas well outside of SIGPLAN
and such), are there any preferred citations for Clojure and EDN? Or could
a recommendation for a citation for both (especially EDN) be proposed if
there isn't one currently?
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Just FYI, some background on keywords that start with a number...
The reader docs (http://clojure.org/reader) states that symbols (and
keywords follow symbols in these rules) must "begin with a non-numeric
character". The current Clojure reader accidentally accepts these due to a
bug in the Lis
When you set the body of a ring response to a java input stream and return
it, is this still a thread per stream? or does it use some sort of java
event loop for efficiency?
I'm worried that a traffic download/upload server in ring wouldn't handle
many concurrent large file uploads and downloads
Just for reference, i use xubuntu (with the apt-get java jdk) and windows
with cursive no problem. I love cursive compared to other clojure dev tools
I've tried.
On Wednesday, April 23, 2014 11:37:12 AM UTC+12, Andrew Chambers wrote:
>
> Don't install intellij from and package manager (it will p
I'm not sure exactly what you're looking for, but the EDN spec is
https://github.com/edn-format/edn and was written by Rich Hickey. Seems
like that is what you should cite.
I don't know what it would mean to "cite" Clojure - it is software, written
by many people over a period of years. Rich Hi
Java input streams are blocking, rather than asynchronous, so yes it would
use a thread per stream.
In theory an asynchronous solution would be more efficient, and there are
adapters, like http-kit, that support this optimisation.
However, in practice, Java can handle many threads in a single pro
I need access control for the static files. The alternative is signed s3
urls which expire. Uploads still require streaming through ring however as
i cant generate signed upload urls with the parameters that I need.
On Wednesday, April 23, 2014 3:27:09 PM UTC+12, James Reeves wrote:
>
> Java inp
Arch has one always up to date.
вторник, 22 апреля 2014 г., 21:11:54 UTC+4 пользователь Roelof Wobben
написал:
>
> Hello,
>
> Does anyone know a Linux distro which I can use to learn clojure and which
> has inteljij aviable.
> I really like to test the cursive plugin
>
> Roelof
>
>
--
You re
2014-04-18 11:35 GMT+02:00 Ulises :
> Inspired by Leif's offer, I've decided to offer Clojure office hours as
> well.
>
> I'm based in the UK so I reckon the times will be more amenable to those
> in Europe (not sure the times will be good for those in Asia unfortunately.)
>
> Sadly the offer is l
2014-04-22 20:18 GMT+02:00 Cecil Westerhof :
> I have a ‘little’ to learn. ;-) I have worked with a lot of languages,
> including Lisp. I was thinking about the following books (in that order):
> - Practical Clojure
> - Clojure in Action
> - The Joy of Clojure
> - Clojure Programming
> - Programmi
Let me also +10 for Eric Normand’s excellent Clojure videos, found at
http://www.purelyfunctional.tv
On Apr 22, 2014, at 10:13 PM, Cecil Westerhof wrote:
> 2014-04-22 20:18 GMT+02:00 Cecil Westerhof :
> I have a ‘little’ to learn. ;-) I have worked with a lot of languages,
> including Lisp. I
Thanks all for the remarks.
Im now looking at codebox.io. The only thing I did not find so far is repl.
The rest seems to be avaible.
Roelof
Op woensdag 23 april 2014 07:07:58 UTC+2 schreef Ruslan Prokopchuk:
> Arch has one always up to date.
>
> вторник, 22 апреля 2014 г., 21:11:54 UTC+4 пол
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