staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

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.

---

youngbrioche

module ImagesHelper
  # Acts as a thin wrapper for image_tag and generates an srcset attribute for regular image tags
  # for usage with responsive images polyfills like picturefill.js, supports asset pipeline path helpers.
  #
  # image_set_tag 'pic_1980.jpg', { 'pic_640.jpg' => '640w', 'pic_1024.jpg' => '1024w', 'pic_1980.jpg' => '1980w' }, sizes: '100vw', class: 'my-image'
  # 
  # => <img src="/assets/ants_1980.jpg" srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw" class="my-image">
  #
  def image_set_tag(source, srcset = {}, options = {})
    srcset = srcset.map { |src, size| "#{path_to_image(src)} #{size}" }.join(', ')

lasarus

Read input until newline and translate into a number
 , ----- ----- [ +++++ +++++
  > [ - > +++++ +++++ < ]
  +++++ +++ [ - < ----- - > ]
  < [ - >> + << ]
  >> [ - < + > ]
  << , ----- ----- ]

Start loop and run the algorithm on each number between zero and the input number
>> - < [ > +

mattes

if _, err := os.Stat("/path/to/whatever"); os.IsNotExist(err) {
	// path/to/whatever does not exist
}

if _, err := os.Stat("/path/to/whatever"); !os.IsNotExist(err) {
	// path/to/whatever exists
}

mlanett

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

prakhar1989

Rich Hickey on becoming a better developer

Rich Hickey • 3 years ago

Sorry, I have to disagree with the entire premise here.

A wide variety of experiences might lead to well-roundedness, but not to greatness, nor even goodness. By constantly switching from one thing to another you are always reaching above your comfort zone, yes, but doing so by resetting your skill and knowledge level to zero.

Mastery comes from a combination of at least several of the following:

kevinelliott

Mac OS X 10.11 El Capitan

Custom recipe to get OS X 10.11 El Capitan running from scratch, setup applications and developer environment. This is very similar (and currently mostly the same) as my 10.10 Yosemite setup recipe (as found on this gist https://gist.github.com/kevinelliott/0726211d17020a6abc1f). Note that I expect this to change significantly as I install El Capitan several times.

I use this gist to keep track of the important software and steps required to have a functioning system after a semi-annual fresh install. On average, I reinstall each computer from scratch every 6 months, and I do not perform upgrades between distros.

This keeps the system performing at top speeds, clean of trojans, spyware, and ensures that I maintain good organizational practices for my content and backups. I highly recommend this.

You are encouraged to fork this and modify it to your heart's content to match your own needs.

nrollr

Install MongoDB on El Capitan

How to install the latest stable version of MongoDB on OS X 10.11 (El Capitan).

• Official MongoDB install documentation: Here
• Current Stable Release: 3.0.6

Make sure you have Homebrew installed before following the different steps documented below.
Important notice: When installing Homebrew on El Capitan there is an important article you should read first: Homebrew and El Capitan

ishankhare07

Erlang for beginners

• Why erlang?
• Why Use Erlang?
• When would you choose Erlang?
• Erlang: For an absolute beginner
• An Erlang OTP tutorial for beginners
• A Beginners Guide to Erlang
• What is the best way to learn Erlang?
• The Joy of Erlang; Or, How To Ride A Toruk

fredbenenson

layout	title	description	tags
default	SQL Style Guide	A guide to writing clean, clear, and consistent SQL.	data process

Purpose