johnzweng

/**
 * Johannes Zweng <john@zweng.at>, 2017
 *
 * This simple script just loads the 2 bancor contracts (Crowdsale and BNT Token)
 * into the geth client and then provides a single status function which you
 * can call on the geth console to query the current status of the crowdsale.
 *
 * Usage:
 * ------
 * 1) Start geth instance

gregawoods

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>KeepAlive</key>
  <true/>
  <key>Label</key>
  <string>homebrew.mxcl.mysql</string>
  <key>ProgramArguments</key>
  <array>

amgando

class Window
  SCALE = 100

  class Collapsed < ArgumentError; end

  attr_reader :low, :mid, :high, :max

  def set(window)
    # p "setting window to #{window}"
    @low, @mid, @high = window

amgando

class NumberNotFoundError < ArgumentError; end

def render(points, length)
  puts "_" * length
  display = " " * length
  markers = %w[\\ | /]
  points.each_with_index do |p, idx|
    display[p] = markers[idx]
  end
  puts "%#{length + 5}s  %3s : %3s : %3s" % [display, *points]

rbishop

Carl Hewitt on Actors

Actor - Fundamental unit of computation, a computation model - not just a form of concurrency

An Actor has three essential elements:

• 1 - Processing - you have to get something done
• 2 - Storage - you have to be able to remember things
• 3 - Communication

Raynos

Virtual DOM and diffing algorithm

There was a [great article][1] about how react implements it's virtual DOM. There are some really interesting ideas in there but they are deeply buried in the implementation of the React framework.

However, it's possible to implement just the virtual DOM and diff algorithm on it's own as a set of independent modules.

Beengie

# Sinatra environment

# Make sure that the link to the "bootstrap.min.js" file is correct in your layout.erb (shown below):
<script src="/vendor/bootstrap/js/bootstrap.min.js"></script>

# Put this in your .erb
<%= show_env %>

# Place constant inside of your main.rb
SHOW_ENVIRONMENT = true

bbugh

In addition to Kevin Conner's answer: block arguments do not support the same semantics as method arguments. You cannot define default arguments or block arguments.

This is only fixed in Ruby 1.9 with the new alternative "stabby lambda" syntax which supports full method argument semantics.

http://stackoverflow.com/questions/89650/how-do-you-pass-arguments-to-define-method#answer-109379

Example:

# Works

mildmojo

# Here's a contrived example of a LEFT JOIN using ARel. This is an example of
# the mechanics, not a real-world use case.

# NOTE: In the gist comments, @ozydingo linked their general-purpose ActiveRecord
# extension that works for any named association. That's what I really wanted!
# Go use that! Go: https://gist.github.com/ozydingo/70de96ad57ab69003446

# == DEFINITIONS
# - A Taxi is a car for hire. A taxi has_many :passengers.
# - A Passenger records one person riding in one taxi one time. It belongs_to :taxi.

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname