Re: How to validate date (YYYYMMDD) using clojure

Have a look at clj-time: https://github.com/clj-time/clj-time In particular the clj-time.format namespace. Cheers! John -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from

Re: Good Clojure Projects for the Classroom?

I run a Clojure study group at work and we generally work 4Clojure problems if nobody has a topic they want to present on. Today, however, we had a great time looking at some "open data" that's out there, specifically about the City of Chicago[1]. I challenged everyone to come up with one or mo

Re: Clojure infrastructure update

Great news, Alex. One question not on your list: are there any plans to put JIRA behind HTTPS? I went to change my password recently and noticed my username/password would be sent in the clear. > > Thanks for all the work you do for the community. John J. -- You received this message becau

Question about how lazy sequences are held/released/garbage collected

The problem of correctly handling large lazy sequences so they don't blow up in memory came up at work this week. I thought I would try to explain the following simple case to our Monday afternoon study group, and I realized I don't understand it 100%: (def n 1e8) (let [s1 (range n) s2 (

Re: How to to watch changed files and run tests again automatic

If you're used to Rspec, have a look at Speclj.[1] It's somewhat Rspec-like. Its -a option does the same as lein midje :autotest, and works better for some situations. In my experience, the different testing frameworks each have their warts and nice features -- it's worth trying more than one

Re: New Functional Programming Job Opportunities

By the way, I have worked at OpinionLab since last February, and my coding has been nearly 100% Clojure since then. If you like Chicago, it's a nice place to work, and I'm happy to answer questions off-list about it. On Monday, December 22, 2014 11:00:28 AM UTC-6, Sean Murphy wrote: > > Here ar

Re: Clojure Style Guide

Great to see this discussion on the mailing list, rather than just comments to PRs on GitHub. And a big thanks to Bozhidar for shepherding the current style guide. I came to Clojure from Python which has a strict standard (PEP-8) and a linting tool which enforces a standard -- it's been my exp

Re: [ANN] Session 0.1.3 - A live-coding environment for Clojure

As a refugee (spy?) from the Python community, it's very exciting to see something similar to iPython Notebook, but based on / supporting the Clojure ecosystem. iPN has been making shockwaves in the Python world and in scientific computing in general for some time. Having only watched the vide

Re: Clojure / polyglot position at OpinionLab in Chicago

On Monday, February 24, 2014 8:46:58 PM UTC-6, Devin Walters (devn) wrote: > > It seems like this comes up with many of the job posts. Perhaps we should > have some guidelines around what details should be provided in the average > job post to cut down on some of the noise that follows. > That m

Re: Clojure / polyglot position at OpinionLab in Chicago

> Lots of people on this list are not based in Chicago or US. Will remote candidates be considered? I checked; apparently not, sorry to say. On Monday, February 24, 2014 1:28:10 PM UTC-6, Michael Klishin wrote: > > > 2014-02-24 22:47 GMT+04:00 John Jacobsen > >: > >

Clojure / polyglot position at OpinionLab in Chicago

Hi everyone, Two weeks ago I joined OpinionLab in Chicago as a Clojure developer. We are seeking more developers who have both a broad skill set and a passion for Clojure. http://www.opinionlab.com/functional-software-developer/ OpinionLab is using Rails on the front-end and Clojure / Storm o

Re: Reading single characters...?

The JLine story is indeed confusing. I believe https://github.com/jline/jline2 is the current one you want ([jline "2.11"] in your project.clj deps). See the forthcoming Clojure Cookbook recipe

Re: Current state of the art in Web deployment?

Many thanks to everyone who replied about deploying a Web server to production. Specific replies: On Aug 17, 2013, at 6:51 PM, Mark Mandel wrote: > > On Sun, Aug 18, 2013 at 6:52 AM, John Jacobsen wrote: >> After some prototyping and development, we are now getting to the sta

Current state of the art in Web deployment?

Hi folks, I'm starting work on a Clojure Web app and would like to get a sense for the current "standard" (if any) for deploying to production. In my case, I have an AWS Ubuntu instance, set up via Vagrant and Puppet, which mirrors some developer VMs. Datomic, leiningen etc. are running every

Re: [ANN] Leiningen 2.3.0 released

That worked for now, thanks! On Friday, August 9, 2013 10:58:30 PM UTC-5, Phil Hagelberg wrote: > > On Friday, August 9, 2013 6:32:06 PM UTC-7, John Jacobsen wrote: > > please advise? Thanks! > > Hm; looks like self-install is getting invoked too soon. Not sure why it &g

Re: [ANN] Leiningen 2.3.0 released

Hi Phil, all, I'm still seeing the error which (I think) others have been reporting here: vagrant@precise32:/tmp$ lein upgrade Downloading Leiningen to /home/vagrant/.lein/self-installs/leiningen-2.3.0-standalone.jar now... /home/vagrant/bin/lein: line 57: /home/vagrant/.lein/self-installs/lei

Overflowing (count ...)

Was unsure whether to post to clojure or clojure-dev, but here goes. I was surprised to learn today that count silently overflows to negative numbers: jenome.core> (time (count (range (*' 1000 1000 1000 3 "Elapsed time: 375225.663 msecs" -1294967296 jenome.core> I can easily get around thi

Re: Time complexity of operations on collections

Exactly what I was looking for, thanks!!! John On Thursday, May 23, 2013 7:06:39 PM UTC-5, Matthew wrote: > > http://www.innoq.com/blog/st/2010/04/clojure_performance_guarantees.html > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to t

Re: Time complexity of operations on collections

Updated draft of table in more readable form here: http://bit.ly/big-o-clojure Thanks to Timothy for corrections/additions! Will keep updating as other replies come in. -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, sen

Re: Time complexity of operations on collections

ava code performs it might be best > to specify which one you mean. > > Yes it's confusing, I'm sure there is a historical reason for it. > > Timothy > > > On Wed, May 22, 2013 at 8:24 AM, John Jacobsen > > > wrote: > >> I should probably also ha

Re: Time complexity of operations on collections

I should probably also have added sorted-map to the table, though the complexity for each operation is less clear to me. -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts

Time complexity of operations on collections

I'm studying for an interview and thought it might be nice to know the time complexity of primitive operations on collections in Clojure. A quick googling didn't turn up a definitive resource. I would be happy to put one together. What I had in mind was something like: Collections: strings,

Re: Clojure - Python Style suggestion

Having written Python code professionally for about 7 years and taken to Clojure as a serious hobby for a year and a half, I have thought a lot about the differences between the two languages. While parens provide simple and powerful homoiconicity (and they have a somewhat pleasing aesthetic --