://github.com/dgrnbrg/spyscope
With spyscope, you can write a handful of characters and get the stack frame,
form, and its value pretty-printed and logged to a queue for future querying.
On Thursday, May 30, 2013 8:28:19 PM UTC-4, David Jacobs wrote:
That's true -- that's why I wrote up
I'm just catching up on this discussion. I think that, regardless of
whether any one coder uses them, debuggers are useful to a large subset of
people. Even though Clojure likes us to be immutable, there are often times
where we would like to debug the mutable parts of our code with something
Two more things:
1) printing is often not a viable option for lazily eval-ed sequences or
async processes -- the output gets jumbled! And believe me, when a new
Clojure dev sees that for the first time, he/she wants to quit.
2) printing is terrible for elegant clojure code -- thing (comp f g h
programs contain this function:
(defn debug [x]
(pprint x)
x)
Now I can do this:
(comp foo debug bar)
Also, with some reader literal magic, I could write something to let me do
this:
(myfunc foo #dbg bar)
On Thu, May 30, 2013 at 6:12 PM, David Jacobs da...@wit.io
forward to seeing many of you there,
David
On Wednesday, January 9, 2013 11:49:42 AM UTC-8, Ben Mabey wrote:
On 1/7/13 4:02 PM, David Jacobs wrote:
What other tips do you have for convincing an employer that Clojure
makes good business sense? (Of course I've already told them about
domain
On Monday, January 7, 2013 3:02:37 PM UTC-8, David Jacobs wrote:
Hey guys,
As someone who's written Clojure for a couple of years now, I would love
to convince my new company to build our platform using Clojure from the
start. Clojure is certainly a possibility for our small team, but a few
With the* team, that is. (Couldn't let that stay uncorrected heh. I hear
ya, Colin, re: sleep.)
On Tuesday, January 8, 2013 10:35:07 AM UTC-8, David Jacobs wrote:
Thanks for all of the feedback and suggestions, everyone. To clear one
thing up, I'm working at an early-stage SF startup, so
Hey guys,
As someone who's written Clojure for a couple of years now, I would love to
convince my new company to build our platform using Clojure from the start.
Clojure is certainly a possibility for our small team, but a few questions
will have to be answered before I can convince everyone
I can see the potential problems with this pattern, but it also seems like a
nice way to metaprogram things like controllers or models in a web app. (In
non-web Clojure dev, I haven't ever run into this issue.) Will have to think
about this some more...
On Friday, October 12, 2012 at 11:33 AM,
I would like to create function names programmatically. So far, I have code
that works:
(defn create [endpoints]
(doseq [{:keys [action method url]} endpoints]
(let [endpoint-fn (if (re-matches #.*/:id(/.*)? url)
(fn [id session]
(method
.
On Thursday, October 11, 2012 at 9:03 PM, David Jacobs wrote:
I would like to create function names programmatically. So far, I have code
that works:
(defn create [endpoints]
(doseq [{:keys [action method url]} endpoints]
(let [endpoint-fn (if (re-matches #.*/:id(/.*)? url
:18 PM, Alan Malloy wrote:
On Thursday, October 11, 2012 9:03:38 PM UTC-7, David Jacobs wrote:
I would like to create function names programmatically. So far, I have code
that works:
...
Where am I going wrong?
David
Sentence one. Don't do it that way: namespaces
Okay that's great. Thanks, you guys. Was read-lines only holding onto
the head of the line seq because I bound it in the let statement?
On Fri, Aug 17, 2012 at 11:09 AM, Ben Smith-Mannschott
bsmith.o...@gmail.com wrote:
On Thu, Aug 16, 2012 at 11:47 PM, David Jacobs da...@wit.io wrote:
I'm
I'm trying to grab 5 lines by their line numbers from a large ( 1GB) file
with Clojure.
So far I've got:
(defn multi-nth [values indices]
(map (partial nth values) indices))
(defn read-lines [file indices]
(with-open [rdr (clojure.java.io/reader file)]
(let [lines (line-seq rdr)]
TL;DR: I want to know best practices for designing functions with multiple
optional arguments.
Okay, so I'm working to build machine learning algorithms in Clojure, and
they tend to need many arguments. Being a long-time Ruby dev, I like to
provide sensible defaults for almost all potential
I'm not sure you read the whole question. I want to know how to delegate
optional arguments to other functions with the same method signatures.
On Friday, June 15, 2012 12:04:00 AM UTC-7, Vinzent wrote:
TL;DR: I want to know best practices for designing functions with multiple
optional
Ah I see, I didn't realize I could apply the general-descend algorithm to
both atoms and arrays to get a flattened list. Thanks!
On Friday, June 15, 2012 12:05:36 AM UTC-7, Meikel Brandmeyer (kotarak)
wrote:
Hi,
you can use destructuring to provide defaults. And you can easily curry in
Very cool, this is exactly what I wanted. Thanks.
On Friday, June 15, 2012 7:27:05 AM UTC-7, Gunnar Völkel wrote:
Hello David.
I have a very similar scenario according to named parameters liker you.
Therefore I have written the library clojure.options which can be found
here:
version of map, I would avoid the macro suggested
earlier, and just do
(def each (comp dorun map))
or
(defn each [f coll] (doseq [x coll] (f x)))
-Walter
On Sat, Jun 9, 2012 at 5:08 PM, David Jacobs da...@wit.io
(mailto:da...@wit.io) wrote:
Thanks, guys.
I know
...@gmail.comwrote:
maybe http://commons.apache.org/math/apidocs/index.html will help?
- lk
On Jun 10, 2012 7:09 AM, David Jacobs da...@wit.io wrote:
Thanks! That section of Incanter must be new, I haven't seen it till
now. Will check it out and report back.
On Friday, June 8, 2012 at 7:15 AM
This is good stuff. I've certainly felt the same way about FP at some
points--for me, Clojure really illuminates why people thought OO was such a
good thing 15 years ago. Let me know if you write that blog post.
On Saturday, June 9, 2012 7:47:47 PM UTC-7, Kurt Harriger wrote:
You could
of the results.
If you call the function just for side-effects, but not the return
value, then the semantics of map don't apply.
Kind regards
Meikel
-Ursprüngliche Nachricht-
*Von: *David Jacobs da...@wit.io*
An: *clojure@googlegroups.com*
Gesendet: *Sa, 09 Jun 2012, 23:08:21
...@gmail.com) wrote:
Combine map with dorun and you get the same effect:
(dorun (map println logs))
http://clojure.github.com/clojure/clojure.core-api.html#clojure.core/dorun
Allen
On Thu, Jun 7, 2012 at 11:32 PM, David Jacobs da...@wit.io
(mailto:da...@wit.io) wrote:
I
Thanks! That section of Incanter must be new, I haven't seen it till now. Will
check it out and report back.
On Friday, June 8, 2012 at 7:15 AM, Lars Nilsson wrote:
On Fri, Jun 8, 2012 at 12:30 AM, David Jacobs da...@wit.io
(mailto:da...@wit.io) wrote:
Has anyone written a function
Has anyone written a function minimizer in Clojure (or in Java)? I want
something like Octave's fminunc [0], where I can pass in a function and a
parameter list and find the parameters that minimize the function. Anyone
know of one?
[0]
I would love to have a version of doseq that works like map (similar to
each in other dynamic languages). In other words, instead of (doseq [log
logs] (println log)), I would say something like (each println logs).
Is there a built-in Clojure method that works like this?
--
You received this
Does the Clojure REPL provide a handle for getting the value returned by
the last executed statement? In Ruby's REPL, the underscore gives you the
last returned value. In Clojure, I'd love to do something like this:
(some-expensive-or-rate-limited-call example.com)
(def cache-after-the-fact _)
What's the status on this? One of the reasons I don't use Clojure everyday,
much as I like it, is that I want it to integrate seamlessly with Unix for
scripting.
David
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at 1:28 AM, Mike Meyer m...@mired.org wrote:
On Wed, 20 Apr 2011 10:16:05 -0700 (PDT)
David Jacobs develo...@allthingsprogress.com wrote:
What's the status on this? One of the reasons I don't use Clojure
everyday,
much as I like it, is that I want it to integrate seamlessly with Unix
You also have to remember that relative paths (including file names passed
to your script) will be interpreted relative to the Nailgun server, not the
user's working directory.
That sounds like a major bug that can (and should) easily be corrected.
--
You received this message because you
of the language 2.0.
Just my $0.02.
David Jacobs
On Wed, Feb 23, 2011 at 11:18 AM, Lärry ki6...@gmail.com wrote:
Gang -
I'm still in the playing stage with the language. I'm exploring
Clojure and
prototyping ideas for future directions. The language is very
expressive and
its community is quite
Hi Saul,
Thanks for the suggestions. I should say that I was only giving you my
impression of using Clojure re: it's version number. I'm not saying any of
the things I listed are not doable, just that they feel very ad-hoc and not
quite ready for a 2.0.
I come from the Ruby world, and Ruby isn't
: 2.0, though, so I guess if we want to talk
about that, we can take it to another thread.
David
On Wed, Feb 23, 2011 at 7:01 PM, Chas Emerick cemer...@snowtide.com wrote:
On Feb 23, 2011, at 4:06 PM, David Jacobs wrote:
- better discovery for existing, well-tested libraries.
You can search
Looks fantastic, this is exactly what I was thinking about when I said Clojure
libraries need more discoverability.
Excellent work.
David
On Wednesday, 23 February 2011 at 10:12 pm, semperos wrote:
Thanks for taking the time and effort to put this together.
-Daniel
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I don't know how I missed this originally. Is there another one planned?
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Note that posts from new members are moderated - please be patient
1. Isn't the world actually imperative? And mutable?
If you're a determinist, then no. Life is a function (albeit a multivariable
function), just like sine.
2. 'Side-effects' are treated almost as a bad word by most functional
programming advocates. And yet, aren't ALL programs executed
I have a sorted list, and I'd like to derive from that a list
containing all ties in the original.
That is, if I have (1 2 3 4 4 5 5 5 5 5 6 9 12 12), I want to get back
the sequence (4 4 5 5 5 5 5 12 12).
My first thought was to try to filter down the list, but filter takes
each element of a
Wow, thanks for the quick replies, guys :) I can't decide which one I
like best.
On Nov 10, 3:40 pm, Ken Wesson kwess...@gmail.com wrote:
And
(let [x (map #(if (= %1 %2) [%1]) s (rest s))]
(mapcat #(if (nil? %1) %2 %1) x (concat (rest x) [nil])))
does it lazily. :)
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You received this
of
[element, count] pairs, you could do this:
(defn seq-ties [coll]
(- coll (partition-by identity) (filter next) (map (juxt first
count)))
(seq-ties [1 1 1 1 2 3 3 4 5 7 7])
;==([1 4] [3 2] [7 2])
On Nov 10, 1:27 pm, Juha Arpiainen jarpi...@gmail.com wrote:
On Nov 10, 10:28 pm, David
, David Jacobs
develo...@allthingsprogress.com wrote:
I've just started learning Clojure and I'm excited about what I see. The
combination of power and sophistication in the language is refreshing, and
I've started to dive into the source code to understand it better.
One meta-observation
, no?
On 14 Oct 2010, at 10:47 pm, Santosh Rajan wrote:
IMHO if it is not broken, dont fix it. I am sure the original authors are
aware and are very much around. Probably they would be the best people to do
it anyway.
On Fri, Oct 15, 2010 at 7:43 AM, David Jacobs
develo
I've just started learning Clojure and I'm excited about what I see. The
combination of power and sophistication in the language is refreshing, and I've
started to dive into the source code to understand it better.
One meta-observation has come out of my scouring.
The indentation used for the
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