katox

;;
;; http://johnj.com/from-elegance-to-speed.html
;;
;; The Clojure version
;; -------------------

(ns smt
  (:require [net.cgrand.xforms :as x]
            [criterium.core :as c :refer [quick-bench]]))

oseme-techguy

#!/usr/bin/env bash

# To fix the " gpg: WARNING: unsafe permissions on homedir '/home/path/to/user/.gnupg' " error
# Make sure that the .gnupg directory and its contents is accessibile by your user.
chown -R $(whoami) ~/.gnupg/

# Also correct the permissions and access rights on the directory
chmod 600 ~/.gnupg/*
chmod 700 ~/.gnupg

ataggart

(defn left-join
  "When passed 2 rels, returns the rel corresponding to the natural
  left-join. When passed an additional keymap, joins on the corresponding
  keys."
  ([xrel yrel]
   (if (and (seq xrel) (seq yrel))
     (let [ks (intersection (set (keys (first xrel)))
                            (set (keys (first yrel))))
           idx (index yrel ks)]
       (reduce (fn [ret x]

gschmutz

version: '2'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:3.3.0
    hostname: zookeeper
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181

vtajzich

class Movie {
    String name
    URL url
}

def downloads = new File('downloads')
downloads.mkdirs()

"http://portal.regiojet.cz/files/movies/".toURL().text.findAll(~/(?<=href=")([\S^"]*)(?=")/)
        .parallelStream()

yoavniran

The Ultimate Unit Testing Cheat-sheet

---

• Sinon Chai
• Chai
• Sinon

tonyg

#lang racket
;; Fusable Streams, after Coutts, Leshchinskiy and Stewart 2007.

;; Haskell:
;; data Stream a where Stream :: (s -> Step s a) -> s -> Stream a
;; data Step s a = Yield a s | Skip s | Done

;; Clojure transducers support:
;;  - early termination
;;  - completion cleanup

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

soheilhy

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

kballenegger

; note: this iteration doesn't work properly.
; looks like i don't understand exactly how react.js works for settings dom element properties


(set! exports {})

; react macros...

(defmacro hash-map-pairs
  "make a hash map from its arguments. each argument is a tuple (key value)"