4+ Hours of Video Training
Overview
Effective Ruby LiveLessons Video Training explains the tips, tricks, and best practices used by the most proficient Rubyists. The series is based on Effective Ruby, the book written by Peter Jones for the Effective Software Development Series. Each lesson contains a set of items designed to provide expert guidance on what to do and what to avoid when writing Ruby. Hands-on demonstrations help the viewer understand how to put …
4+ Hours of Video Training
Overview
Effective Ruby LiveLessons Video Training explains the tips, tricks, and best practices used by the most proficient Rubyists. The series is based on Effective Ruby, the book written by Peter Jones for the Effective Software Development Series. Each lesson contains a set of items designed to provide expert guidance on what to do and what to avoid when writing Ruby. Hands-on demonstrations help the viewer understand how to put each item into action.
Description
Each of the video’s five lessons includes items centered on a key topic. The video starts with items focused on how to make effective use of arrays and hashes before moving on to lessons that teach viewers how to improve their objects by creating seams between them and how to write excellent tests for their Ruby applications. Next, the training teaches viewers how to solve problems associated with enumerables and callables, and finally how to best make use of the standard library. After watching this video, Rubyists will have gained the knowledge necessary to really master the language; viewers will be able to immediately apply the advice, tips, and tricks learned to the Ruby programs they’re writing to improve the quality of their code.
Related Files
The companion files for this LiveLesson can be downloaded from https://github.com/samphippen/efrll.
About the Instructor
Sam Phippen has been writing software for more than seven years. Sam has spent the last four years building Ruby and Ruby on Rails applications. He routinely gives conference talks about software design and testing and currently serves the Ruby community as a member of the RSpec core team. Sam regularly contributes to Open Source Ruby applications and works as a consultant at Fun and Plausible Solutions. Mostly, Sam helps his clients with software design and improving the quality of the applications that they are building. He loves refactoring sticky rails applications and uses a number of principles of object oriented design to ensure that the software he works on will be maintainable far into the future.
Skill Level
What You Will Learn
Who Should Take This Course
Course Requirements
Table of Contents
Lesson 1: Arrays and Hashes
In the first lesson you learn some of the more advanced ways to use Ruby’s built-in collection classes to simplify your applications, as well as some of the common pitfalls associated with using these objects.
Lesson 2: Seams
In Lesson 2, you learn ways to decouple objects in your system. You also discover some standards and practices used by expert Ruby developers for creating seams between objects.
Lesson 3: Testing
In Lesson 3, you learn some of the easiest ways to improve your tests, and how to improve the design of your system through the use of well-structured tests.
Lesson 4: Enumerables and Callables
Lesson 4 teaches you how to use enumerables and callable to simply express powerful concepts built on standard Ruby APIs.
Lesson 5: The Standard Library
In Lesson 5 you thoroughly explore the Ruby standard library and learn how to use the library to improve your writing of applications.
About LiveLessons Video Training
The LiveLessons Video Training series publishes hundreds of hands-on, expert-led video tutorials covering a wide selection of technology topics designed to teach you the skills you need to succeed. This professional and personal technology video series features world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, IBM Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT Certification, Programming, Web Development, Mobile Development, Home and Office Technologies, Business and Management, and more. View all LiveLessons on InformIT at: http://www.informit.com/livelessons.
Introduction
Effective Ruby LiveLessons: Introduction
Lesson 1: Arrays and Hashes
Learning Objectives
Item 1 Duplicate collections you receive as arguments
Item 2 Use Set for efficient presence checks
Item 3 Consider using a default hash value
Item 4 Use Hash#fetch over Hash#[]
Item 5 Prefer decorating collections
Lesson 2: Seams
Learning Objectives
Item 6 Avoid using class variables
Item 7 Avoid using class methods
Item 8 Obey the Law of Demeter
Item 9 Prefer methods over instance variables
Item 10 Prefer methods over constants
Item 11 Use the === protocol for matching tasks
Lesson 3: Testing
Learning Objectives
Item 12 Use only one assertion or expectation per test
Item 13 Order your tests with the arrange, act, and assert pattern
Item 14 Run your tests in a random order
Item 15 Prefer spies to mocks or stubs
Item 16 Use Rack::Test for integration testing
Lesson 4: Enumerables and Callables
Learning Objectives
Item 17 Prefer enumerable methods
Item 17.1 Use zip and each_with_index
Item 17.2 Use each_slice and each_con
Item 17.3 Use partition, select, and find
Item 17.4 Use group_by, reduce, and each_with_object
Item 17.5 Implement your own enumerable
Item 18 Prefer lambda instead of proc
Item 19 Use Symbol#to_proc where appropriate
Item 20 Use #method to pass instance methods as callables
Item 21 Use {} for blocks that return and do..end for blocks that mutate
Lesson 5: The Standard Library
Learning Objectives
Item 22 Use block forms for IO
Item 23 Understand the difference between Time, DateTime, and Date
Item 24 Do HTTP requests with Net::HTTP
Item 25 Prefer file methods over manual path manipulation
Item 25.1 Use #absolute_path, #dirname, and FILE to be OS independent
Item 25.2 Use File.extname to determine file type
Item 25.3 Use File.join to build file paths safely
Summary
Effective Ruby LiveLessons: Summary