Morning,
I have just had a 3 month contract come up for a Clojure/Clojurescript/Reagent
engineer here in London. Working for a top Clojure house!
Drop me a line for more info or if you are interested!
a...@functionalworks.com
thanks,
Alex
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So, as Andy pointed, transients would do the trick for you. And maybe type
hints could also help but, as Stuart said, benchmark it all the way down.
Regards
Plinio
On Wednesday, April 20, 2016, JvJ wrote:
> I don't think I'll go with primitive arrays. A big part of the reason I'm
> using Cloj
The docstring for 'get' says nothing explicit about vectors ("Returns the
value mapped to key, not-found or nil if key not present.") but most of us
know that vectors can be viewed as associative data structures where
indexes are like keys:
(get [\a \b \c] 1)
\b
'get' also works on strings:
This is a special case behavior of clojure.core/get, as you can see in the
RT.java source file at these lines:
https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/RT.java#L750-L755
I have no idea if a JIRA would be accepted for any change on this or not,
but if one was, I suspect i
It doesn't necessarily follow that something that works with
clojure.core/get needs to work with clojure.core/assoc. You can have an
object that implements ILookup but not Associative, for instance.
The problem with using assoc with native JVM data structures like strings
and arrays is that there
On Apr 21, 2016, at 10:04, James Reeves wrote:
>
> Clojure seems to avoid having functions that have variable performance
> depending on the data structure they're applied to.
But not always! (e.g. count)
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That's a good point, but it should be noted that all collections for which
clojure.core/counted? returns true (they implement clojure.lang.Counted)
should implement count in constant time. So the design of the Counted
interface was clearly intended to provide consumers a soft guarantee of
perfo
That's a good point, but it should be noted that all collections for which
clojure.core/counted? returns true (they implement clojure.lang.Counted)
should implement count in constant time. So the design of the Counted
interface was clearly intended to provide consumers a soft guarantee of
perfo
On Thursday, April 21, 2016 at 11:49:16 AM UTC-5, Andy Fingerhut wrote:
>
> Most doc strings are considered terse by many people. This appears to be
> considered a feature by those who maintain Clojure, not a bug, with one
> reason given by Stuart Halloway in his recent talk on using the scien
Strings are indexed. They are a special case because String is a Java final
class that cannot be "extended" to support the core interfaces inside
Clojure's Java implementation. If Clojure were itself protocol-based (like
ClojureScript is), the protocol could cover this without the special case.
On Thursday, April 21, 2016 at 2:20:11 PM UTC-5, Mars0i wrote:
> The behavior with strings is simply undocumented anywhere, afaik, though.
>
Sorry, that was wrong even before I added an example to clojure.docs. The
conj.io documentation is quite explicit and detailed.
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I'm working with two deftypes that I want to be able to references each
other. (They're persistent and transient implementations of the same
collection.)
So far, it seems that the normal clojure.core/declare doesn't work in this
case. Is there another way to do it?
Thanks
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Pretty sure Michal Marczyk mentioned this in his Clojure/West talk last week:
https://www.youtube.com/watch?v=vZtkqDIicqI&index=14&list=PLZdCLR02grLq4e8-1P2JNHBKUOLFTX3kb
(I don’t remember exactly what he said was the workaround)
Sean Corfield -- (904) 302-SEAN
An Architect's View -- ht
Few things to consider: code against protocols where possible (removes the
need to forward declare methods). Forward declare the constructor functions:
(declare ->Foo)
...
(defn some-code []
(->Foo 1 2))
(defrecord Foo [x y])
If you need to do type checks check for a protocol instead.
Timot
I am running exactly the code in the example given in (doc
principal-components).
On Wed, Apr 20, 2016 at 11:46 AM, Bruce Durling wrote:
> Myriam,
>
> Would you check with the latest commit on the develop branch please?
> We're trying to get a new SNAPSHOT release out that might sort a
> number
What I ended up doing was forward-declaring a wrapper to the constructor of
the later class. I actually am implementing a protocol, but the concrete
types representing the persistent and transient versions need to reference
each other. Also, I'm using deftype over defrecord because I want the
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