SingularityMatrix

require 'singleton'
class User
    include singleton
end

>> User.instance
=> #<User:0x007fe75492fea8>
>> User.instance
=> #<User:0x007fe75492fea8>

chrissimpkins

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.

Key to the Keys

• ⌘ : Command key
• ⌃ : Control key
• ⌫ : Delete key
• ← : Left arrow key
• → : Right arrow key
• ↑ : Up arrow key

zabirauf

defmodule Expng do

  defstruct [:width, :height, :bit_depth, :color_type, :compression, :filter, :interlace, :chunks]

  def png_parse(<<
  0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A,
                 _length :: size(32),
                 "IHDR",
                 width :: size(32),
                 height :: size(32),

SingularityMatrix

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

mattweldon

Build Server

• Go to Digital Ocean
• Create new droplet
• London
• Ubuntu
• No apps
• Add SSH keys

kumagi

#define _GNU_SOURCE 1
#include <sched.h>  // sched_setaffinity
#include <stdint.h>
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
#include <stdint.h>
#include <pthread.h>
#include <assert.h>
#include <sys/time.h>

potatosalad

{
  "crv": "Ed25519",
  "d": "VoU6Pm8SOjz8ummuRPsvoJQOPI3cjsdMfUhf2AAEc7s",
  "kty": "OKP",
  "x": "l11mBSuP-XxI0KoSG7YEWRp4GWm7dKMOPkItJy2tlMM"
}

brandondurham

/**
 * Using Operator Mono in Atom
 * 
 * 1. Open up Atom Preferences.
 * 2. Click the “Open Config Folder” button.
 * 3. In the new window’s tree view on the left you should see a file called “styles.less”. Open that up.
 * 4. Copy and paste the CSS below into that file. As long as you have Operator Mono SSm installed you should be golden!
 * 5. Tweak away.
 *
 * Theme from the screenshot (http://cdn.typography.com/assets/images/blog/operator_ide2.png):

yang-wei

Should be work with 0.18

Destructuring(or pattern matching) is a way used to extract data from a data structure(tuple, list, record) that mirros the construction. Compare to other languages, Elm support much less destructuring but let's see what it got !

Tuple

myTuple = ("A", "B", "C")
myNestedTuple = ("A", "B", "C", ("X", "Y", "Z"))

chrismccord

#Phoenix 1.1.x to 1.2.0 Upgrade Instructions

Project Generator

To generate new projects as 1.2.0, install the new mix archive:

mix archive.install https://github.com/phoenixframework/archives/raw/master/phoenix_new.ez

Deps