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gem 'ruby-prof'

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# CLOSURES IN RUBY     Paul Cantrell    http://innig.net
# Email: username "cantrell", domain name "pobox.com"

# I recommend executing this file, then reading it alongside its output.
#
# Alteratively, you can give yourself a sort of Ruby test by deleting all the comments,
# then trying to guess the output of the code!

# A closure is a block of code which meets three criteria:

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// Model with property observers:

Model = function() {}

Model.prototype.observe = function(prop, observer) {
    this._observers = this._observers || {}
    if(!this._observers[prop]) {
        this._observers[prop] = []
        

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class Recording < ActiveRecord::Base
  has_many :artistic_contributions, dependent: :destroy, include: [:artistic_role, :artist]
  has_many :artists, through: :artistic_contributions
  has_many :editions, class_name: 'RecordingEdition', dependent: :destroy
  has_many :blog_posts, foreign_key: :podcast_recording_id
  
  validates :title, :base_file_name, presence: true
  
  before_save :refresh_editions

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Study these screenshots:

https://innig.net/tmp/nr-screenshots/

Fork this gist (one fork per team).

Sketch out an object model for this application. Don't worry about view, network, database, etc.; your concern is only to represent the essential information of this application as classes and attributes. You can use the following attribute types:

• numbers, strings, dates
• other model classes

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//
//  KittenTest.swift
//  KittenTest
//
//  Created by Paul on 2015/9/13.
//  Copyright © 2015 Kodama Software. All rights reserved.
//

import Foundation

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extension TypedContentAccessors {
    /**
      Adds a `.json` convenience property to resources that returns a SwiftyJSON `JSON` wrapper.
      If there is no data, then the property returns `JSON([:])`.
      
      Note that by default, Siesta parses data based on content type. This accessor is only a way
      of conveniently donwcasting and defaulting the data that Siesta has already parsed. (Parsing
      happens off the main thread in a GCD queue, never in response one of these content accessors.)
      To produce a custom data type that Siesta doesn’t already know how to parse as a Siesta
      resource’s content, you’ll need to add a custom `ResponseTransformer`.

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protocol Tensor {
  static var numberOfDims: Int { get }
}

struct NestedTensor<Element: Tensor>: Tensor {
  static var numberOfDims: Int {
    return 1 + Element.numberOfDims
  }
  
  // ...etc...

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@media (-webkit-min-device-pixel-ratio: 2) {
  img { 
    image-rendering: -webkit-optimize-contrast;
    image-rendering: optimize-contrast;
  }
}

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Proposed changes to Siesta’s API before it hits the 1.0 freeze. Please post your feedback on this document to the accompanying Github issue.

Argument names

“Prefer to follow the language’s defaults for the presence of argument labels”

• These changes seem good:

  • Entity.init(_:_:) → init(response:content:)

• Error.init(_:_:_:userMessage:) → init(response:content:cause:userMessage:)