kulte

// Examples of pure functions. No side effects. No mutations. 
function square(x) {
  return x * x;
}

function squareAll(items) {
  return items.map(square);
}

// Examples of impure functions.

kulte

"use strict"
var Promise = function () {
  this.state = 'pending'
  this.thenables = []
}

Promise.prototype.resolve = function (value) {
  if (this.state != 'pending') return

  this.state = 'fulfilled'

kulte

git checkout bcee89a90aad3877da531d6cb10ca91c6155d577 -- app/assets/images/sales

kulte

factory :user do
  email "bob.bobsen@gmail.com"
  password "secret"
  
  trait :with_comments do
    after(:create) do |user, evaluator|
      # FactoryGirl.create_list(factory, number_of_items, factory_attrs)
      FactoryGirl.create_list(:comment, 1, user: user)
    end
  end

kulte

var powerRankings = [
    "49ers",
    "Seahawks",
    "Broncos"
];

var index = powerRankings.indexOf("Seahawks", 1);

var rank = index + 1;

kulte

var powerRankings = [
    "49ers",
    "Seahawks",
    "Broncos"
];

var index = powerRankings.indexOf("Seahawks");

var rank = index + 1;

kulte

class MyApp::Interface::NavigationBar
  include ActionView::Helpers::UrlHelper
  
  delegate :url_helpers, to: 'Rails.application.routes'
  
  def initialize(template, current_user)
    @template = template
    @current_user = current_user
  end
 

kulte

class MyApp::Interface::NavigationBar
  include ActionView::Helpers::UrlHelper
  
  delegate :url_helpers, to: 'Rails.application.routes'
  
  def initialize(template, current_user)
    @template = template
    @current_user = current_user
  end

kulte

##
# Runs a single test with setup/teardown hooks.

def run
  with_info_handler do
    time_it do
      capture_exceptions do
        before_setup; setup; after_setup

        self.send self.name

kulte

module ActionView
  module Helpers
    module FormHelper

      def encrypted_text_field(object_name, method, options = {})
        InstanceTag.new(object_name, method, self, options.delete(:object)).to_encrypted_input_field_tag("text", options)
      end

      class InstanceTag
        def to_encrypted_input_field_tag(field_type, options = {})