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Immutant primer

Homework for LDN event [Workshop: Clojure][event].

Task

Follow [Immutant Tutorials][tutorials] and install [Leiningen][leiningen] and [Immutant][install].

1. Create [web handler][deploy] for /?counter=some-name
2. Create [queue][messaging] to enqueue some-name
3. Create [cache][caching]
4. Read from queue and increment cache(some-name)

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arkadijs

Javascript with CouchDB hackathon

http://www.meetup.com/Latvian-Developers-Network/events/85092202/

Ubuntu Erlang goodies

$ cat /etc/apt/sources.list.d/erlang.list
deb http://binaries.erlang-solutions.com/debian precise contrib
$ sudo apt-get -y install esl-erlang

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      transactional {
        val delta = event.days // 7 days
        val q =
          """
            |construction_merchants [status = :active] {id}
            |-
            |                                          construction_merchants merchant
            |[merchant.prn_id = official_list.prn_id]  official_list
            |[official_list.child_id = member.prn_id]  construction_merchants member
            |[merchant.status = :active & member.status = :active & official_list.date_to = null & official_list.typ = :org]

arkadijs

import Test.Hspec
import Data.List

anagrams :: [String] -> String -> [String]
anagrams lwords checkword = filter (wordsAreAnagrams checkword) lwords

wordsAreAnagrams :: String -> String -> Bool
wordsAreAnagrams a b = (a /= b) && (sort a == sort b)

allAnagrams :: [String] -> [[String]]

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class ArabicNumeralsTest extends GroovyTestCase {

    def converter = new RomanNumerals()

    void testOne() {
        assert 1 == converter.toArabic("I")
    }

    void testDigit() {
        assert 4 == converter.toArabic("IV")

arkadijs

package te;

import java.util.ArrayList;
import java.util.List;

public class Container<T> {
    public List<T> elems = new ArrayList<T>();

    public Container(T arg) {
        this.elems.add(arg);