Hi, would anyone in the Clojure community be interested in purchasing
the ClojureScreencasts.com domain?
I had created a lot of introductory videos a few years ago, but the site
has been idle.
Maybe someone else in the community would like to do something useful with
that domain?
Thanks,
Jim
How much is it for?
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Hi Brian,
I think what you’re searching for is:
(require ‘[clojure.core.reducers :as r])
(r/fold concat ((comp (partition-all 5) (map #(apply + %))) conj) (into []
(range 1000)))
However, the result of the above is undetermined (results are different every
time you call). This is because you h
I don't have a set price, it doesn't have to cost much... Just looking for
a good steward for the domain.
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Could anybody explain please why I can't get a sample of falses or
quoted nils / falses here?
foo.core> (clojure-version)
"1.10.0"
foo.core> (require '[clojure.spec.gen.alpha :as gen]
'[clojure.spec.alpha :as s])
nil
foo.core> (gen/sample (s/gen #{'nil}))
Error printing return v
Sets are treated as predicate functions which are valid when they produce a
logically true value. Sets with logically false values nil or false will
fail this check. This is not a spec thing, but a general thing to be aware
of in Clojure when using sets as functions.
If you want nils, use (s/ge
Hi Alex,
> Sets are treated as predicate functions which are valid when they produce a
> logically true value.
So then my question boils down to:
Why is then (boolean (quote nil)) => false and (boolean (quote
anything)) => true?
And this boils down to:
Why a type of quoted symbol (type (
On Tue, Jan 29, 2019 at 4:23 PM Rostislav Svoboda <
rostislav.svob...@gmail.com> wrote:
> Hi Alex,
>
> > Sets are treated as predicate functions which are valid when they
> produce a logically true value.
>
> So then my question boils down to:
> Why is then (boolean (quote nil)) => false and (
You can see the special cases of nil, false, and true in the LispReader
here if you're curious:
https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/LispReader.java#L393-L413
On Tue, Jan 29, 2019 at 4:45 PM Alex Miller wrote:
>
>
> On Tue, Jan 29, 2019 at 4:23 PM Rostislav Svobo
I am moving some code to use spec and namespaced keywords under Clojure
1.10.0 (release). One group of keywords starts with a numeric character
after the colon, which has worked fine in the non-namespaced context.
Creating and using the namespaced keyword works correctly in the local
namespace
you are misusing the :: alias resolution operator, user is not an alias
Clojure 1.9.0
(ins)user=> (ns foo)
nil
(ins)foo=> ::user/a
RuntimeException Invalid token: ::user/a
clojure.lang.Util.runtimeException (Util.java:221)
(ins)foo=> :user/a
:user/a
On Tue, Jan 29, 2019 at 2:52 PM Philip Markgraf
Hi Brian,
On Friday, 25 January 2019 22:19:21 UTC, Brian Craft wrote:
>
> Are there any docs on transducer parallelism?
>
Not a lot, but you can find something here:
https://labs.uswitch.com/transducers-from-the-ground-up-the-practice/#parallelism
I had the impression, from various sources, tha
Thank you. I apologize that my condensed example was in error. (Is the
error you are showing that you can't create a namespaced keyword in a
namespace you are not in?)
However, the condition I originally describe occurs when the original
namespace is properly created with ns:
user=> (ns name1)
I believe the original intent was that keywords with a digit immediately
after the colon would not be supported, but due to a bug in the Clojure
reader they were permitted. There was a brief time in 2013 where this bug
was fixed, but there were enough extant Clojure code bases that used such
keywo
There are two interrelated issues here.
First, when you are using autoresolved keywords, the qualifier part must be
an alias. Here it is a fully-qualified namespace (user). Instead, you
should be using :user/015-00. Note that before Clojure 1.10, this would not
produce an error - this was an ov
Thank you, Alex and Andy. This answers my question regarding leading digit
in keywords.
Alex,
You describe an error with autoresolved keywords in my example. Is this
also true of the second example I posted (in response to Justin), which
does not use the user namespace? Am I correct to use dou
On Tuesday, January 29, 2019 at 10:07:29 PM UTC-6, Philip Markgraf wrote:
>
> Thank you, Alex and Andy. This answers my question regarding leading digit
> in keywords.
>
>
> Alex,
> You describe an error with autoresolved keywords in my example. Is this
> also true of the second example I poste
I just wanted to say thanks to Alex for taking the time to journal all the
Clojure things he's working on (and the non-Clojure things as well).
They're enjoyable to read and eye-opening. It's a great window into the
effort that he and others are putting into Clojure. It's been fun to follow
the
For anyone interested, the approach I ended up taking was to AOT everything all
the time. But, require the class namespaces to be explicitly defined in the
build config file for any which needs to be included in the Jar. And when
packaging the Jar, only the Clojure source and the AOT class files
My actual case is using the keyword across two files (namespaces), using
the ns/:require/:as constructs in the file that did not define the keyword.
(The REPL example was created to give a minimal replication of the leading
digit issue.)
So, now I am really wondering what the intent with spec a
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