Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Duck Typing

Avatar for Javier Cervantes Javier Cervantes
May 30, 2014
Programming
0
76

Duck Typing

Based on chapter #5 of POODR.

Given at rubygdl.org.

Avatar for Javier Cervantes

Javier Cervantes

May 30, 2014
Tweet

More Decks by Javier Cervantes

See All by Javier Cervantes
Continuous Delivery para todos @ SGNext
Avatar for Javier Cervantes solojavier
0
98
Gobot.io y el internet de las cosas
Avatar for Javier Cervantes solojavier
0
110
Deliberate Practice - Lightning Talk
Avatar for Javier Cervantes solojavier
0
140
Golang - WePow Talks
Avatar for Javier Cervantes solojavier
0
59
Server Provisioning and Configuration
Avatar for Javier Cervantes solojavier
0
63
Evolución Robótica
Avatar for Javier Cervantes solojavier
0
47
Re-evolución robótica
Avatar for Javier Cervantes solojavier
0
82
Artoo : Ruby on robots
Avatar for Javier Cervantes solojavier
0
100
Las pruebas primero
Avatar for Javier Cervantes solojavier
0
56

Other Decks in Programming

See All in Programming
なぜ「共通化」を考え、失敗を繰り返すのか
Avatar for Rinchoku rinchoku
1
610
アンドパッドの Go 勉強会「 gopher 会」とその内容の紹介
Avatar for ANDPAD inc andpad
0
280
Modern Angular with Signals and Signal Store: New Rules for Your Architecture @enterJS Advanced Angular Day 2025
Avatar for Manfred Steyer manfredsteyer
PRO
0
170
#QiitaBash MCPのセキュリティ
Avatar for Tommy(sigma) ryosukedtomita
0
510
プロダクト志向なエンジニアがもう一歩先の価値を目指すために意識したこと
Avatar for Nealle nealle
0
120
Benchmark
Avatar for 송상윤 sysong
0
280
データの民主化を支える、透明性のあるデータ利活用への挑戦 2025-06-25 Database Engineering Meetup#7
Avatar for Kentaro Yoshida y_ken
0
330
PipeCDのプラグイン化で目指すところ
Avatar for Warashi warashi
1
230
設計やレビューに悩んでいるPHPerに贈る、クリーンなオブジェクト設計の指針たち
Avatar for panda_program panda_program
6
1.8k
第9回 情シス転職ミートアップ 株式会社IVRy（アイブリー）の紹介
Avatar for 株式会社IVRy（社員登壇資料） ivry_presentationmaterials
1
260
Composerが「依存解決」のためにどんな工夫をしているか #phpcon
Avatar for hideki kinjyo o0h
PRO
1
250
Deep Dive into ~/.claude/projects
Avatar for Yuya Hirayama hiragram
10
2.2k

Featured

See All Featured
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
Avatar for soudai sone soudai
PRO
181
53k
Improving Core Web Vitals using Speculation Rules API
Avatar for Sergey Chernyshev sergeychernyshev
17
950
Intergalactic Javascript Robots from Outer Space
Avatar for Vicent Martí tanoku
271
27k
[RailsConf 2023 Opening Keynote] The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
29
9.5k
The Invisible Side of Design
Avatar for Vitaly Friedman smashingmag
300
51k
Build The Right Thing And Hit Your Dates
Avatar for Maggie C. maggiecrowley
36
2.8k
A Tale of Four Properties
Avatar for Chris Coyier chriscoyier
160
23k
Navigating Team Friction
Avatar for Lara Hogan lara
187
15k
Save Time (by Creating Custom Rails Generators)
Avatar for Garrett Dimon garrettdimon
PRO
31
1.3k
Dealing with People You Can't Stand - Big Design 2015
Avatar for Cassini Nazir cassininazir
367
26k
Designing Dashboards & Data Visualisations in Web Apps
Avatar for Des Traynor destraynor
231
53k
Bootstrapping a Software Product
Avatar for Garrett Dimon garrettdimon
PRO
307
110k

Transcript

  1. Duck Typing @ruby_gdl << @solojavier # Based on chapter 5

    of book poodr.com

  2. What is Duck Typing "If an object quacks like a

    duck and walks like a duck, then it's a duck" Technique that help us reduce cost of change Public interfaces not tied to any specific class Duck typed objects are chameleons that are defined more by their behaviour than by their class

  3. Learning by example

  4. None
  5. None

  6. requirements.change!

  7. None
  8. None

  9. code_design.add(:duck_typing)

  10. None
  11. None
  12. None

  13. Summary Duck typing detaches public interfaces from classes It creates

    virtual types defined by behaviour Depending on this abstractions increases flexibility This will make your application easier to change