dvgica

# modified from Bruno Miranda's original found here: http://brunomiranda.com/past/2007/6/2/displaying_12_hour_style_time_select/

# usage: <%= form.time_select :the_time, { :twelve_hour => true } %>

module ActionView
  module Helpers
    class DateTimeSelector
      def select_hour_with_twelve_hour_time 
        datetime = @datetime
        options = @options

coreyhaines

--colour
-I app

moklett

Unfortunately, the Cisco AnyConnect client for Mac conflicts with Pow. And by "conflicts", I mean it causes a grey-screen-of-death kernel panic anytime you connect to the VPN and Pow is installed.

As an alternative, there is OpenConnect, a command-line client for Cisco's AnyConnect SSL VPN.

Here's how to get it set up on Mac OS X:

1. OpenConnect can be installed via homebrew:

    brew update
   

brew install openconnect

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

steveklabnik

class SomeController < AC::Base
  def show
    foo = Foo.first
    bar = Bar.first
    
    show_model = ShowViewModel.new(foo, bar)

    render show_model
  end
end

Sjors

#!/usr/bin/env ruby
require 'open-uri'
require 'JSON'
require 'digest/sha2'
require 'pry'
require 'bigdecimal'
require 'bitcoin' # Because I need to cheat every now and then

# Usage:
# gem install pry json ffi ruby-bitcoin

kapkaev

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

ross-p

/**
 * Ethereum Account Scanner
 *
 * To run this, you need your own geth node, accepting RPC
 * connections on a port you can access.
 *
 * Install pre-requisites:
 *     sudo npm install -g web3
 *
 * Usage:

bretton

2018-03-18: Updating of this guide is taking a backseat to the mainnet version at

• https://gist.github.com/bretton/0b22a0503a9eba09df86a23f3d625c13

Intro

This guide is specific to getting LND and bitcoind running on ubuntu 16.04 LTS for testnet.

It does not address mainnet, or using btcd, or neutrino.

Original installation guide:

MuhsinFatih

I am assuming you are here because like me, you installed a bazillion different python interpreters on mac and the whole thing is a spagetti. Today, I finally fixed my python installation. Whatever I install for python2 or python3 using pip JUST.WORKS.. My god! finally.

What the hell?

Here is what I had messed up, which you also probably did:

• I had too many different python interpreters
• Too many different symlinks which I lost track of
• almost no package I installed with pip worked without a headache
• any attempt to fix using online resources made it worse.