0mkara

Create your own Ethereum private network

Introduction

Used nodes:

Linux raspberrypi 4.9.41-v7+ #1023 SMP Tue Aug 8 16:00:15 BST 2017 armv7l GNU/Linux

Linux localhost.localdomain 4.14.5-200.fc26.x86_64 #1 SMP Mon Dec 11 16:29:08 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

clonn

聲明: 此並非爲官方聲明。我並非爲 io.js 官方代表，如果有任何問題，歡迎在 node-forward 一起討論

io.js - what you need to know

• io 內容主要會從 node v0.12 分支出來 ( node v0.12 是下一個正式版本，但是尚未釋出)
• io.js 將會 完全相容 於 node.js
• io.js 開發者大多於 node.js 核心貢獻者，這邊有關於 io.js 想法以及運作方針

srt32

Installing the Postgres PostGIS extension on OSX

For reference: http://postgis.net/install

If you don’t already have PG installed

The most reliable way to get PostGIS on OSX is to download and install Postgres.app. Great for development and testing. Do not mix with other installations. Select the extension when prompted.

If you already have PG installed

jlecour

# encoding: UTF-8

require 'optparse'
require 'net/http'
require 'json'

def parse_options(argv)
  opts = {}

  @parser = OptionParser.new do |o|

robb-broome

#Install opencv MacOSX Mavericks

1. fire up xcode - to insure that command line tools are there.
2. xcode-select --install (older OS?)
3. https://developer.apple.com/downloads/index.action# (you need an apple developer account, use your apple id)
4. brew update
5. brew tap homebrew/science

Cloning into '/usr/local/Library/Taps/homebrew-science'...
remote: Reusing existing pack: 3765, done.

xdite

專案名稱： Rails新手村網站

主旨：收集 Rails 有用 Link

基本功能

• 使用者可以登入 / 登出
• 使用者可以使用 Facebook 登入 https://github.com/xdite/auto-facebook

Electron-libre

module PgArrayHstoreFix
  def self.included(base)
    base.class_eval do
      before_save :serialize_array_hash
    end

    def serialize_array_hash
      self.class.attribute_names.each do |attribute|
          column_definition = self.column_for_attribute(attribute)
          if column_definition.array && column_definition.type == :hstore

bricker

"Russian-Doll Caching" is great. It embraces the Rails (and Ruby) goal to "make the developer happy". And it does. Not having to worry about cache expiration is superb.

It has its limits, though. If you're trying to avoid any database queries, russian-doll caching will not work for you. If you are trying to represent thousands, or even hundreds, of objects under a single cache fragment, russian-doll caching is not the best option.

We use it whenever it makes sense, but sometimes we just have to bite the bullet and expire a cache fragment manually. When you want to start manually expiring cache on a fairly busy website, you have to start considering race conditions. I recently ran into the following scenario:

class Post < ActiveRecord::Base
  after_save :expire_cache
  

JamesDullaghan

Deploy Rails app to digitalocean with nginx, unicorn, capistrano & postgres

Create droplet of your liking (ubuntu 12.10 x32)

ssh to root in terminal with your server ip

ssh [email protected]

Add ssh fingerprint and enter password provided in email

tedmiston

/*
In the node.js intro tutorial (http://nodejs.org/), they show a basic tcp 
server, but for some reason omit a client connecting to it.  I added an 
example at the bottom.

Save the following server in example.js:
*/

var net = require('net');