iwarshak

Versions

• Bootstrap 4 Alpha 6
• Phoenix 1.2.1

Instructions

1. Install npm packages

npm install --save-dev sass-brunch

iwarshak

Types

A type is a collection of possible values. An integer can have values 0, 1, 2, 3, etc.; a boolean can have values true and false. We can imagine any type we like: for example, a HighFive type that allows the values "hi" or 5, but nothing else. It's not a string and it's not an integer; it's its own, separate type.

Statically typed languages constrain variables' types: the programming language might know, for example, that x is an Integer. In that case, the programmer isn't allowed to say x = true; that would be an invalid program. The compiler will refuse to compile it, so we can't even run it.

iwarshak

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

iwarshak

# [ UIViewController, UIView, etc. ]...

[ UIViewController ].each do |klass|
  klass.class_eval do
    def self.allocWithZone(zone)
      super.tap do |x|
        p " +   alloc! #{x.inspect}"
      end
    end
    alias_method 'old_dealloc', 'dealloc'

iwarshak

Sprockets::Helpers::RailsHelper::AssetPaths.class_eval do
  class MissingAssetError < StandardError; end
  def digest_for_with_presence_check(logical_path)
    unless asset_environment[logical_path]
      raise MissingAssetError.new("#{logical_path} doesn't exist")
    end
    digest_for_without_presence_check(logical_path)
  end

  alias_method_chain :digest_for, :presence_check

iwarshak

class MigrateUserToDevise < ActiveRecord::Migration
  def self.up
    change_table :users do |t|
      t.string :encrypted_password, :null => false, :limit => 128
      # ...
    end
  end

  def self.down
  end

iwarshak

#!/usr/bin/env ruby

def output_config
  puts <<-END
graph_category App
graph_title passenger status
graph_vlabel count

sessions.label sessions
max.label max processes