Veha Suwatphisankij vehas

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Develop locally with Elasticsearch on OSX using Docker

Docker

Docker does not run natively on OSX, only Linux. Docker Machine was created to add a Linux VM environment to run Docker containers on OSX. Install using Homebrew:

brew install docker
brew install docker-machine
docker-machine create

Reactive Programming

Introduction
Functional Programming

My Atom hack (init script) for speed programming in Ruby. This code is very ugly but works.

Features

Upon saving,

Ruby code in the specified directory is run.
Test input data (after 1st __END__ but before 2nd __END__) is sent to the script via stdin.
Output and/or errors are displayed in a popup.
Program output is compared to test output data (after 2nd __END__). If it matches, then the popup becomes green.

Atom Clojure Setup

This describes how I setup Atom for an ideal Clojure development workflow. This fixes indentation on newlines, handles parentheses, etc. The keybinding settings for enter (in keymap.cson) are important to get proper newlines with indentation at the right level. There are other helpers in init.coffee and keymap.cson that are useful for cutting, copying, pasting, deleting, and indenting Lisp expressions.

Install Atom

Download Atom

The Atom documentation is excellent. It's highly worth reading the flight manual.

	# ::: Dvorak - Vimium Custom key mappings :::
	# NOTE: This unmaps all keys and only adds frequently used ones.
	# It mainly uses left hand keys so you don't have to let go of the mouse.
	# How to use: open Vimium option screen, put this in "Custom key mappings" section.

	unmapAll

	# Link
	map u LinkHints.activateMode
	map U LinkHints.activateModeToOpenInNewTab

	(defn my-get
	"@param {*} m
	@param {*} k
	@return {nil\|Object}"
	[m k]
	(get m k))

	(defn foo
	"@param {!Object} x" ;; non-nullable
	[x] x)

	(ns onyx-tx-report-queue
	(:require [clojure.core.async :refer [>!! alts!! chan close! put! thread]]
	[clojure.tools.logging :as log]
	;; :all so clj-refactor doesn't remove it:
	[onyx.plugin.core-async :refer :all]
	[datomic.api :as d])
	(:import [java.util.concurrent TimeUnit]))

	(defn prepare-datom [db [e a v tx added]]
	[e (d/ident db a) v tx added])