gus

For each Ruby module/class, we have Ruby methods on the left and the equivalent
Clojure functions and/or relevant notes are on the right.

For clojure functions, symbols indicate existing method definitions, in the 
clojure namespace if none is explicitly given.  clojure.contrib.*/* functions can
be obtained from http://github.com/kevinoneill/clojure-contrib/tree/master,
ruby-to-clojure.*/* functions can be obtained from the source files in this
gist.

If no method symbol is given, we use the following notation:

sirupsen

class TodoList < Array
	def self.load(file)
		# read the file, create a list, create items, add them to the list, return the list
		list = TodoList.new
		File.read(file).each_line do |line|
			list << line.chomp
		end

		list
	end

ghoseb

;;
;; NS CHEATSHEET
;;
;; * :require makes functions available with a namespace prefix
;;  and optionally can refer functions to the current ns.
;;
;; * :import refers Java classes to the current namespace.
;;
;; * :refer-clojure affects availability of built-in (clojure.core)
;;   functions.

klang

(ns one-lineres)

;; 1. Multiple Each Item in a List by 2
(map #(* 2 %) (range 1 11))

;; 2. Sum a List of Numbers
(reduce + (range 1 1001))

;; 3. Verify if Exists in a String
(def words #{"scala" "akka" "play framework" "sbt" "typesafe"})

daveray

; A REPL-based, annotated Seesaw tutorial
; Please visit https://github.com/daveray/seesaw for more info
;
; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers
; Seesaw's basic features and philosophy, but only scratches the surface
; of what's available. It only assumes knowledge of Clojure. No Swing or
; Java experience is needed.
;
; This material was first presented in a talk at @CraftsmanGuild in
; Ann Arbor, MI.

stuartsierra

Sample Project

Starting from:

lein new foo
cd foo

Say I have a random JAR file that is not available in any repository:

touch README.md

continuous_deploy.sh

folder="bin/classes/"
package="$1"

inotifywait -m -q -e close_write "$folder" | while read f; do 
    # take only the filename
    f=`awk '{print $3}' <<< "$f"`

    # rebuild the full path
    path="$folder$f"

halgari

(use 'clojure.core.async)

(defprotocol ISendable
  (channel [this]))

(defn async-agent [state]
  (let [c (chan Long/MAX_VALUE) ;; <<-- unbounded buffers are bad, but this matches agents
        a (atom state)]
    (go-loop []
             (when-let [[f args] (<! c)]

ms-tg

/**
 * ```
 * Does JDK8's Optional class satisfy the Monad laws?
 * =================================================
 *   1.  Left identity:  true
 *   2.  Right identity: true
 *   3.  Associativity:  true
 *
 * Yes, it does. 
 * ```

noprompt

(ns foo.core
  (:refer-clojure :exclude [slurp]))

(defmacro slurp [file]
  (clojure.core/slurp file))

;; In CLJS

(ns bar.core
  (:require [foo.core :include-macros true :refer [slurp]]))