| Description |
1 online resource |
| Note |
Includes index. |
| Summary |
Become an accomplished Ruby programmer by understanding the design principles, best practices, and trade-offs involved in implementation approaches to keep your Ruby applications maintainable in the long termKey FeaturesUnderstand the design principles behind polished Ruby code and trade-offs between implementation approachesUse metaprogramming and DSLs to reduce the amount of code needed without decreasing maintainabilityLearn Ruby web application design principles and strategies for databases, security, and testingBook DescriptionMost successful Ruby applications become difficult to maintain over time as the codebase grows in size. Polished Ruby Programming provides you with recommendations and advice for designing Ruby programs that are easy to maintain in the long term.This book takes you through implementation approaches for many common programming situations, the trade-offs inherent in each approach, and why you may choose to use different approaches in different situations. You'll start by learning fundamental Ruby programming principles, such as correctly using core classes, class and method design, variable usage, error handling, and code formatting. Moving on, you'll learn higher-level programming principles, such as library design, use of metaprogramming and domain-specific languages, and refactoring. Finally, you'll learn principles specific to web application development, such as how to choose a database and web framework, and how to use advanced security features.By the end of this Ruby programming book, you'll have gained the skills you need to design robust, high-performance, scalable, and maintainable Ruby applications.While most code examples and principles discussed in the book apply to all Ruby versions, some examples and principles are specific to Ruby 3.0, the latest release at the time of publication.What you will learnUse Ruby's core classes and design custom classes effectivelyExplore the principles behind variable usage and method argument choiceImplement advanced error handling approaches such as exponential backoffDesign extensible libraries and plugin systems in RubyUse metaprogramming and DSLs to avoid code redundancyImplement different approaches to testing and understand their trade-offsDiscover design patterns, refactoring, and optimization with RubyExplore database design principles and advanced web app securityWho this book is forIf you already know how to program in Ruby and want to learn more about the principles and best practices behind writing maintainable, scalable, optimized, and well-structured Ruby code, then this Ruby book is for you. Intermediate to advanced-level working knowledge of the Ruby programming language is expected to get the most out of this book. |
| Contents |
Cover -- Title Page -- Copyright and Credits -- Dedicated -- Contributors -- Table of Contents -- Preface -- Section 1: Fundamental Ruby Programming Principles -- Chapter 1: Getting the Most out of Core Classes -- Technical requirements -- Learning when to use core classes -- Best uses for true, false, and nil objects -- Different numeric types for different needs -- Understanding how symbols differ from strings -- Learning how best to use arrays, hashes, and sets -- Implementing an in-memory database -- Working with Struct -- one of the underappreciated core classes -- Summary -- Questions |
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Further reading -- Chapter 2: Designing Useful Custom Classes -- Technical requirements -- Learning when to create a custom class -- Handling trade-offs in SOLID design -- The single-responsibility principle -- The open-closed principle -- The Liskov substitution principle -- The interface segregation principle -- The dependency inversion principle -- Deciding on larger classes or more classes -- Learning when to use custom data structures -- Summary -- Questions -- Chapter 3: Proper Variable Usage -- Technical requirements -- Using Ruby's favorite variable type -- the local variable |
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Increasing performance by adding local variables -- Avoiding unsafe optimizations -- Handling scope gate issues -- Naming considerations with local variables -- Learning how best to use instance variables -- Increasing performance with instance variables -- Handling scope issues with instance variables -- Naming considerations for instance variables -- Understanding how constants are just a type of variable -- Handling scope issues with constants -- Visibility differences between constants and class instance variables -- Naming considerations with constants -- Replacing class variables |
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Replacing class variables with constants -- Replacing class variables with class instance variables using the superclass lookup approach -- Replacing class variables with class instance variables using the copy to subclass approach -- Avoiding global variables, most of the time -- Summary -- Questions -- Further reading -- Chapter 4: Methods and Their Arguments -- Technical requirements -- Understanding that there are no class methods, only instance methods -- Naming methods -- Special method names -- Using the many types of method arguments -- Positional arguments |
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Optional positional arguments -- Rest arguments -- Keyword arguments -- Block arguments -- Learning about the importance of method visibility -- Fixing visibility mistakes -- Handling delegation -- Delegating to other objects -- Summary -- Questions -- Chapter 5: Handling Errors -- Technical requirements -- Handling errors with return values -- Handling errors with exceptions -- Considering performance when using exceptions -- Retrying transient errors -- Understanding more advanced retrying -- Breaking circuits -- Designing exception class hierarchies -- Using core exception classes -- Summary |
| Local Note |
eBooks on EBSCOhost EBSCO eBook Subscription Academic Collection - North America |
| Subject |
Ruby (Computer program language)
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Object-oriented programming (Computer science)
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Object-oriented programming (Computer science) |
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Ruby (Computer program language) |
| Other Form: |
Print version: 9781801072724 |
| ISBN |
9781801077910 (electronic bk.) |
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1801077916 (electronic bk.) |
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9781801072724 (pbk.) |
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