johnnymo87

/admin/content/merge_articles/[2013, "08", "18", "merge-into-me"]

johnnymo87

require 'spec_helper'

# This spec was generated by rspec-rails when you ran the scaffold generator.
# It demonstrates how one might use RSpec to specify the controller code that
# was generated by Rails when you ran the scaffold generator.
#
# It assumes that the implementation code is generated by the rails scaffold
# generator.  If you are using any extension libraries to generate different
# controller code, this generated spec may or may not pass.
#

johnnymo87

var fs   = require('fs');
    util = require('util');

/**
 * Exercise 1
 * Make an HTTP server that serves files. The file path is provided in the URL like this: http://localhost:4000/path/to/my
 */

require('http').createServer(function(req, res) {
    var file = '.' + req.url;

johnnymo87

# Snippet from  LocalSupport / features / charity_page.feature

Feature: Web page owned by each charity
  As a charity worker
  So that I can increase my charity's visibility
  I want to have a web presence
  Tracker story ID: https://www.pivotaltracker.com/story/show/45405153

  Background: organizations have been added to database
    Given the following organizations exist:

johnnymo87

From top comment on: http://flanders.co.nz/2009/11/08/a-good-url-regular-expression-repost/

// (?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
//
// $@ matches the entire url
// $1 matches scheme (http, ftp, mailto, ym, mshelp, etc)
// $2 matches authority (host, ftp user:pwd@host, etc)
// $3 matches path
// $4 matches query (http GET REST api, etc)
// $5 matches fragment (html anchor, etc)

johnnymo87

# in spec/models/project_spec.rb

describe '#paginate' do
  before(:all) { 9.times { FactoryGirl.create(:project) } }
  after(:all)  { User.delete_all }

  it 'returns paginated values' do
    Project.paginate(page: 1).should eq Project.first 5
    Project.paginate(page: 1).length.should eq 5
    Project.paginate(page: 1).count.should eq 9

johnnymo87

class UserReportsController < ApplicationController
  layout 'full_width', :except => [:invited]
  
  ...

  def invited
    @resend_invitation = true
    @invitations = serialize_invitations
    render :template => 'user_reports/invited', :layout => 'invitation_table'
  end

johnnymo87

Deconstructing the framework, by Gary Bernhardt

Single Responsibility Principle - A class should have one, and only one, reason to change.

A Rails controller's reasons to change:

• Authentication
• Authorization
• Wrap HTTP in both directions (in: params & headers; out: status codes & headers)
• Manipulate your Active Record models
• Manipulate your database (user.reload)

johnnymo87

import math.abs

object finding_fixed_points {
  val tolerance = 0.0001                          //> tolerance  : Double = 1.0E-4
  def isCloseEnough(x: Double, y: Double) =
  	abs((x - y) / x) / x < tolerance          //> isCloseEnough: (x: Double, y: Double)Boolean
  def fixedPoint(f: Double => Double)(firstGuess: Double) = {
  	def iterate(guess: Double): Double = {
  		val next = f(guess)
  		if (isCloseEnough(guess, next)) next

johnnymo87

# https://class.coursera.org/progfun-004/assignment/view?assignment_id=4
# Exercise 2: Write a recursive function which verifies the balancing of parentheses in a string

def balance(ary, collected = [])
  return collected.length.even? if ary.empty?
  char = ary.shift
  balance(ary, collected + char.scan(/\(|\)/))
end

require 'minitest/autorun'