j05h

  class Numeric
    def to_rad
      self * Math::PI / 180
    end
  end
 
  # http://www.movable-type.co.uk/scripts/latlong.html
  # loc1 and loc2 are arrays of [latitude, longitude]
  def distance loc1, loc2
     lat1, lon1 = loc1

wbailey

require 'yaml'
require 'logger'
require 'active_record'

namespace :db do
  def create_database config
    options = {:charset => 'utf8', :collation => 'utf8_unicode_ci'}

    create_db = lambda do |config|
      ActiveRecord::Base.establish_connection config.merge('database' => nil)

jay3sh

function foo(args) {
  var i, j, k;
  // ...
  // j acquires some interesting value
  // Who called foo when j took this interesting value?
  //

  var e = new Error('dummy');
  var stack = e.stack.replace(/^[^\(]+?[\n$]/gm, '')
      .replace(/^\s+at\s+/gm, '')

rondale-sc

begin
  ['oily_png', 'pp'].each do |g|
    require g
  end
rescue LoadError => e
  puts "Could not load '#{e}'"; exit
end

class Hough
  Convert = "/usr/local/bin/convert"

jlong

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";

parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.search;   // => "?search=test"
parser.hash;     // => "#hash"
parser.host;     // => "example.com:3000"

jrochkind

require 'date'

# Actually doesn't matter WHAT you choose as the epoch, it
# won't change the algorithm. Just don't change it after you
# have cached computed scores. Choose something before your first
# post to avoid annoying negative numbers. Choose something close
# to your first post to keep the numbers smaller. This is, I think,
# reddit's own epoch. 
$our_epoch = Time.local(2005, 12, 8, 7, 46, 43).to_time

pachacamac

# $ grep '^###' ruby_nuggets.rb
# if you just want all headlines

### multiple heredoc goodness
head,body = <<END_HEAD,<<END_BODY
this is the head
yea still head
END_HEAD
and now some body
it is #{Time.now} now

pachacamac

#!/usr/bin/env ruby

DATA.flock(File::LOCK_EX | File::LOCK_NB) or abort "Already running."

Process.daemon(true)

def active_window_info
  Hash[`xprop -id $(xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)" | awk '{print $5}')`
       .scan(/^WM_(NAME|CLASS).*? = "(.*?)"(, "|$)/)
       .map{|e| e.first.downcase!; e[0..-2]}]

pachacamac

tags: markdown cheatsheet help author: admin protected: admin

Markdown Cheatsheet

{:.no_toc}

• toc {:toc}

ctalkington

source :rubygems
gem "puma"
gem "sinatra"