seejohnrun

require 'set'
require 'rspec'

### An example of how to implement a variant pattern in Ruby

class Variant
  InvalidLabel = Class.new(StandardError)
  UnhandledMatchCase = Class.new(StandardError)
  UnnecessaryDefaultCase = Class.new(StandardError)
  ExtraMatchCase = Class.new(StandardError)

seejohnrun

module Enumerable
  def map_count
    Hash.new(0).tap { |h| each { |e| h[yield e] += 1 } }
  end
end

puts [1, 2, 3, 4, 5].map_count(&:odd?) # {true=>3, false=>2}

seejohnrun

# Mark NoMethodError(s) coming from a call on `nil`
class NilClass
  def method_missing(*)
    super
  rescue NoMethodError => e
    e.instance_variable_set :@real_nil, true
    raise e
  end
end

seejohnrun

class String
  def |(other)
    other.call(*self)
  end

  def >(other)
    File.write(other, *self)
    0
  end
end

seejohnrun

var url = 'https://lh6.googleusercontent.com/-NQAMokukfdE/AAAAAAAAAAI/AAAAAAAAAAA/zSaLZajdgEI/s48-c-k-no/photo.jpg';
var xoffset = 240;
var yoffset = 210;
var pixelSize = 7;
var viewportWidth = 800;
var viewportHeight = 670;

//
// And away we go
//

seejohnrun

#!/usr/bin/env ruby
raise 'usage: globber \'views/**/*.php\' \'echo {}\'' unless ARGV.length == 2
Dir.glob(ARGV[0]).each { |f| system(ARGV[1].gsub('{}', f)) }

seejohnrun

// A quick runner for doing operations (either synchronous or asynchronous),
// in series
var simpleSequence = function (sequenceCallback) {
  // Collect the operations
  var operations = [];
  sequenceCallback(function (operation) {
    operations.push(operation);
  });
  // Do the operations
  (function perform() {

seejohnrun

// Grab a timebomb copy of a function that will expire in a certain time
// period - raising errors when called outside of that window
var timebomb = function (toCall, expireIn) {

  // Expire the function call in expireIn ms
  setTimeout(function () {
    toCall = undefined;
  }, expireIn);

  // Return a wrapper function that will clear the timeout, and

seejohnrun

(function($){

  /*
   * This is a jQuery extension to make it so that when you drag
   * a fixed-position div's handle, you can resize the div.
   *
   * options.handleSelector (default='.handle') - how to find the handle
   * options.direction (default='up') - the expansion direction
   * options.min (default=0) - the min height (or width)
   * options.max (default=clientHeight) - the max height (or width)

seejohnrun

// ported from:
http://stackoverflow.com/questions/2140787/select-random-k-elements-from-a-list-whose-elements-have-weights

// each node in the heap has a value, weight, and totalWeight
// the totalWeight is the weight of the node plus any children
var Node = {};
var newNode = function (value, weight, totalWeight) {
  var node = Object.create(Node);
  node.value = value;
  node.weight = weight;