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Ruby Pocket Reference: Instant Help for Ruby Programmers
by Michael FitzgeraldUpdated for Ruby 2.2, this handy reference offers brief yet clear explanations of Ruby’s core elements—from operators to blocks to documentation creation—and highlights the key features you may work with every day. Need to know the correct syntax for a conditional? Forgot the name of that String method? This book is organized to help you find the facts fast.Ruby Pocket Reference, 2nd Edition is ideal for experienced programmers who are new to Ruby. Whether you’ve come to Ruby because of Rails, or you want to take advantage of this clean, powerful, and expressive language for other applications, this reference will help you easily pinpoint the information you need.You’ll find detailed reference material for:Keywords, operators, comments, numbers, and symbolsVariables, pre-defined global variables, and regular expressionsConditional statements, method use, classes, and exception handlingMethods for the BasicObject, Object, Kernel, String, Array, and Hash classesTime formatting directivesNew syntax since Ruby 1.9
Ruby Recipes
by Malay MandalSolve your Ruby programming problems that occur during your day-to-day scripting work. This book contains a varied selection of practical and interesting code recipes designed to make your coding life easier. Ruby Recipes includes solutions to problems in working with data, handling exceptions, writing blocks, and using regular expressions. This book provides ready scripts for both simple complex scripting tasks, which you can use readily or with only minor modifications. These scripts cover areas such as collections, classes and structures, functional programming, and log handling. With these handy recipes at your fingertips, you will be able to solve those niggling problems and become even more efficient. What You Will Learn Install and run Ruby Read and write data Write functions Work with arrays, ranges, hashes, and iterators Handle dates and time Process XML as text Master OOP concepts such as classes, objects, subclassing, and inheritance Connect to databases Who This Book Is For Programmers new to Ruby, and web developers interested in knowing the foundations of the language.
Ruby Under a Microscope
by Pat Shaughnessy<p>Ruby is a powerful programming language with a focus on simplicity, but beneath its elegant syntax it performs countless unseen tasks. <p>Ruby Under a Microscope gives you a hands-on look at Ruby’s core, using extensive diagrams and thorough explanations to show you how Ruby is implemented (no C skills required). Author Pat Shaughnessy takes a scientific approach, laying out a series of experiments with Ruby code to take you behind the scenes of how programming languages work. <p>You’ll even find information on JRuby and Rubinius (two alternative implementations of Ruby), as well as in-depth explorations of Ruby’s garbage collection algorithm. <p>Ruby Under a Microscope will teach you:–How a few computer science concepts underpin Ruby’s complex implementation–How Ruby executes your code using a virtual machine–How classes and modules are the same inside Ruby–How Ruby employs algorithms originally developed for Lisp–How Ruby uses grammar rules to parse and understand your code–How your Ruby code is translated into a different language by a compilerNo programming language needs to be a black box. <p>Whether you’re already intrigued by language implementation or just want to dig deeper into Ruby, you’ll find Ruby Under a Microscope a fascinating way to become a better programmer. Covers Ruby 2.x, 1.9 and 1.8
Ruby Wizardry
by Eric WeinsteinThe Ruby programming language is perfect for beginners: easy to learn, powerful, and fun to use! But wouldn't it be more fun if you were learning with the help of some wizards and dragons?Ruby Wizardry is a playful, illustrated tale that will teach you how to program in Ruby by taking you on a fantastical journey. As you follow the adventures of young heroes Ruben and Scarlet, you’ll learn real programming skills, like how to:–Use fundamental concepts like variables, symbols, arrays, and strings–Work with Ruby hashes to create a programmable breakfast menu–Control program flow with loops and conditionals to help the Royal Plumber–Test your wild and crazy ideas in IRB and save your programs as scripts–Create a class of mini-wizards, each with their own superpower!–Organize and reuse your code with methods and lists–Write your own amazing interactive stories using RubyAlong the way, you’ll meet colorful characters from around the kingdom, like the hacker Queen, the Off-White Knight, and Wherefore the minstrel. Ruby Wizardry will have you (or your little wizard) hooked on programming in no time.For ages 10+ (and their parents!)
Ruby and MongoDB Web Development Beginner's Guide
by Gautam RegeThis book is packed with step-by-step instructions and practical examples, along with accompanying screenshots and code for an easy learning curve. The needs of a beginner are totally satisfied by the book. This book assumes that you are experienced in Ruby development skills - Ruby, HTML, CSS. Having knowledge of using NoSQL will help you get through the concepts quicker, but it is not mandatory. No prior knowledge of MongoDB required.
Ruby by Example
by Kevin C. Baird<p>There may be no better way to learn how to program than by dissecting real, representative examples written in your language of choice. <p>Ruby by Example analyzes a series of Ruby scripts, examining how the code works, explaining the concepts it illustrates, and showing how to modify it to suit your needs. <p>Baird's examples demonstrate key features of the language (such as inheritance, encapsulation, higher-order functions, and recursion), while simultaneously solving difficult problems (such as validating XML, creating a bilingual program, and creating command-line interfaces). <p>Each chapter builds upon the previous, and each key concept is highlighted in the margin to make it easier for you to navigate the book.You'll learn how to:–Use the interactive Ruby shell (irb) to learn key features of the language–Extend Ruby using RubyGems, the Ruby package manager–Create numerical utilities, as well as utilities that process and analyze HTML/XML–Implement purely functional and metaprogramming techniques to save time and effort–Optimize, profile, and test your code to make sure that it not only does its job, but does it well–Create web applications using RailsRuby is the fastest growing programming language today, and for good reason: its elegant syntax and readable code make for prolific and happy programmers. <p>But it can be difficult to understand and implement without a little help. Ruby by Example shows you how to take advantage of Ruby as you explore Ruby's fundamental concepts in action.
Ruby in Practice
by Jeremy McAnally Assaf ArkinRuby in Practice increases your productivity by showing you specific Ruby techniques you can use in your projects. The book offers detailed strategies for using Ruby in a large-scale environment. You'll see concrete examples of integration, messaging, web development, and databases, all presented in a clear Problem/Solution format. This book won't help you push your deadline back, but it will help you get the job done in less time.Above all, Ruby in Practice is a practical book for developers who want an in depth understanding of the Ruby language and its toolset. The book is divided into three major parts.The first part concentrates on issues that developers face both from within their organizations and from their peers. The authors weigh the costs and benefits of using Ruby in enterprise development projects, the over-riding theme being that every developer should always aim to use the right tool for any particular job. The authors then examine the pros and cons of developing with Ruby, and where appropriate, compare Ruby to other languages, both conceptually and in code.The second part discusses techniques for communication and integration of systems. The authors describe how libraries and techniques are used to facilitate messaging, web development and communication automation. They also focus on how the strategies in the first section can be used with these libraries to make development more flexible and efficient.The last part shows how to manage data and integrate with existing data using Ruby. The authors describe techniques for using existing Ruby libraries that either replace popular Java libraries or can interface with existing data in a different way. They go on to show you how strategies covered in the first section can be used to enable Ruby to interact with existing assets or to build new data systems. Purchase of the print book comes with an offer of a free PDF, ePub, and Kindle eBook from Manning. Also available is all code from the book.
Ruby in a Nutshell: A Desktop Quick Reference
by Yukihiro MatsumotoRuby is an absolutely pure object-oriented scripting language written in C and designed with Perl and Python capabilities in mind. While its roots are in Japan, Ruby is slowly but surely gaining ground in the US. The goal of Yukihiro Matsumoto, creator of Ruby and author of this book, is to incorporate the strengths of languages like Perl, Python, Lisp and Smalltalk. Ruby is a genuine attempt to combine the best of everything in the scripting world. Since 1993, Ruby mailing lists have been established, Web pages have formed, and a community has grown around it. The language itself is very good at text processing and is notable for its broad object orientation. Ruby is portable and runs under GNU/Linux (and other Unices) as well as DOS, MS Windows and Mac.With Ruby in a Nutshell, Matsumoto offers a practical reference to the features of this new language including the command-line options, syntax, built-in variables, functions, and many commonly used classes and modules. This guide covers the current stable version of Ruby (1.6), yet is applicable to the development version 1.7 and the next planned stable version 1.8. You will find a thorough description of Ruby's language syntax, and a description of the core functionality built into the standard Ruby interpreter, which has more than 800 built-in methods in 42 classes and modules.Ruby finds its power through its built-in libraries, and this handy volume take you through the many useful libraries that come with the standard Ruby distribution--from network access via HTTP and CGI programming, to data persistence using the DBM library. This book concludes with coverage of the unique tools that come with Ruby, including the debugger, profiler, and irb (or interactive ruby.)Find out how Ruby combines the strengths of other languages, and why it has captured the interest of so many open source programmers. As part of the successful "in a nutshell" series of books from O'Reilly & Associates, Ruby in a Nutshell is for readers who want a single desktop reference for all their needs.
Ruby on Rails Background Jobs with Sidekiq
by David B. CopelandOne of the best ways to improve your Rails app’s performance is to use background jobs with Sidekiq. While Sidekiq is easy to get set up, you need to do more than just move code around to reap the benefits. In this book, you’ll get solutions to what sort of code should go into a Sidekiq job and how to manage those jobs. You’ll create a Sidekiq configuration that will serve as a solid foundation for your app, including how to be notified when jobs inevitably fail. You’ll then tame alerting fatigue by designing idempotent jobs that can be safely retried in the face of the types of transient failures that are common in networked applications, all without alerting you until action is needed. With that foundation, you’ll get a conceptual framework for general monitoring and alerting around your Sidekiq installation and the Redis database it uses, as well as practical tips for organizing the code around your Sidekiq jobs. You’ll also learn valuable testing strategies for code that uses Sidekiq jobs. In no time at all you’ll build a Rails app using Sidekiq that is efficient, manageable, and sustainable. Using Sidekiq for background jobs is a great way to scale and grow your app. This book will give you a solid, practical foundation for creating resilient, well-tested, self-healing code that uses background jobs. You’ll be able to simulate real-world failure modes and learn how to write idempotent code that can be safely run with Sidekiq. Buy this DRM-free Pragmatic Bookshelf ebook today!Using Sidekiq for background jobs is a great way to scale and grow your app. This book will give you a solid, practical foundation for creating resilient, well-tested, self-healing code that uses background jobs. You’ll be able to simulate real-world failure modes and learn how to write idempotent code that can be safely run with Sidekiq.
Ruby on Rails Enterprise Application Development: Plan, Program, Extend
by Rob Nichols Elliot SmithThis book is aimed at developers who want to find out how to rapidly build easily-deployed, easily-supported business applications. It is for developers who have learned Ruby on Rails, probably from one of the tutorial books, and want to apply that knowledge to effectively build full, realistic applications.
Ruby on Rails For Dummies
by BurdQuickly create Web sites with this poweful toolUse this free and easy programming language for e-commerce sites and blogsIf you need to build Web and database applications quickly but you don't dream in computer code, take heart! Ruby on Rails was created for you, and this book will have you up and running in no time. The Ruby scripting language and the Rails framework let you create full-featured Web applications fast. It's even fun!Discover how toInstall and run Ruby and RailsUse the RadRails IDECreate a blog with RubyConnect your Web site to a databaseBuild a shopping cartExplore Ruby's syntax
Ruby on Rails Web Mashup Projects
by Chang Sau SheongThis book is project-based. The format of each project is similar, with a statement of the project, discussion of the main protocols involved, an overview of the API, and then complete code for building the project. You will be led methodically through concrete steps to build the mashup, with asides to explain the theory behind the code. This book is for Ruby on Rails developers who want to expand the features of their site by consuming remote external data and services. Basic knowledge of Ruby on Rails programming is required but you need not have any experience of any of the APIs used.
Ruby on Rails. Wprowadzenie. Wydanie II
by Curt Hibbs Lance Carlson Bruce TatePoznaj Ruby on Rails i twórz pot??ne aplikacje internetowe w zaledwie kilka dniJak budowa? dynamiczne strony, nastawione na u?ytkownika?Jak rozwi?za? problemy z wydajno?ci? baz danych?Jak sprawnie i efektywnie korzysta? z platformy Ruby on Rails?Dlaczego masz wybra? Ruby on Rails? G?ównie dlatego, ?e jest to wyj?tkowe narz?dzie, które umo?liwia budow? aplikacji internetowych ka?dego typu (w tym portali spo?eczno?ciowych, witryn e-commerce, oprogramowania do zarz?dzania oraz tworzenia statystyk) w zaledwie kilka dni! A to wszystko dzi?ki Rails -- doskonale wyposa?onemu frameworkowi do tworzenia aplikacji internetowych opartych o bazy danych -- który oferuje ?rodowisko z wykorzystaniem j?zyka Ruby. Za? ten j?zyk programowania charakteryzuje si? niezwyk?ym po??czeniem cech: jest równocze?nie prosty, elegancki i elastyczny, co pozwala dowolnie modyfikowa? jego cz??ci. Ksi??ka "Ruby on Rails. Wprowadzenie. Wydanie II" zawiera szczegó?owe porady i wskazówki dotycz?ce instalacji oraz korzystania z Rails 2.1, a tak?e j?zyka skryptowego Ruby. W podr?czniku znajdziesz nie tylko wyja?nienia odno?nie sposobu dzia?ania Rails, ale równie? opis kompletnej aplikacji. Dzi?ki temu przewodnikowi dowiesz si?, w jaki sposób wspó?pracuj? ze sob? wszystkie aplikacje tworz?ce szkielet Rails, a ponadto nauczysz si? sprawnie korzysta? z dokumentacji oprogramowania i tworzy? zaawansowane aplikacje znacznie szybciej ni? dotychczas. Uruchamianie i organizacja RailsBudowanie widokuRusztowania, REST i ?cie?kiKlasy z?o?oneRozbudowywanie widokówZarz?dzanie uk?adem stronyArkusze stylówTworzenie w?asnych funkcji pomocniczychTestowanie i debugowanieTworzenie nowej aplikacji Rails Wyczerpuj?ce i przyjazne wprowadzenie w Ruby on Rails.
Ruby on Rails: Up and Running
by Curt Hibbs Bruce TateRuby on Rails is the super-productive new way to develop full-featured web applications. With Ruby on Rails, powerful web applications that once took weeks or months to develop can now be produced in a matter of days. If it sounds too good to be true, it isn't. If you're like a lot of web developers, you've probably considered kicking the tires on Rails - the framework of choice for the new generation of Web 2.0 developers. Ruby on Rails: Up and Running takes you out for a test drive and shows you just how fast Ruby on Rails can go. This compact guide teaches you the basics of installing and using both the Ruby scripting language and the Rails framework for the quick development of web applications. Ruby on Rails: Up and Running covers just about everything you need - from making a simple database-backed application to adding elaborate Ajaxian features and all the juicy bits in between. While Rails is praised for its simplicity and speed of development, there are still a few steps to master on the way. More advanced material helps you map data to an imperfect table, traverse complex relationships, and build custom finders. A section on working with Ajax and REST shows you how to exploit the Rails service frameworks to send emails, implement web services, and create dynamic user-centric web pages. The book also explains the essentials of logging to find performance problems and delves into other performance-optimizing techniques. As new web development frameworks go, Ruby on Rails is the talk of the town. And Ruby on Rails: Up and Running can make sure you're in on the discussion.
Ruby on Rails: Up and Running
by Curt Hibbs Bruce TateRuby on Rails is the super-productive new way to develop full-featuredweb applications. With Ruby on Rails, powerful web applications thatonce took weeks or months to develop can now be produced in a matter ofdays. If it sounds too good to be true, it isn't.If you're like a lot of web developers, you've probably consideredkicking the tires on Rails - the framework of choice for the newgeneration of Web 2.0 developers. Ruby on Rails: Up and Running takes you out for a test drive and shows you just how fastRuby on Rails can go.This compact guide teaches you the basics of installing and using boththe Ruby scripting language and the Rails framework for the quickdevelopment of web applications. Ruby on Rails: Up andRunning covers just about everything youneed - from making a simple database-backed application toadding elaborate Ajaxian features and all the juicy bits in between.While Rails is praised for its simplicity and speed of development,there are still a few steps to master on the way. More advancedmaterial helps you map data to an imperfect table, traverse complexrelationships, and build custom finders. A section on working with Ajaxand REST shows you how to exploit the Rails service frameworks to sendemails, implement web services, and create dynamic user-centric webpages. The book also explains the essentials of logging to findperformance problems and delves into other performance-optimizingtechniques.As new web development frameworks go, Ruby on Rails is the talk of thetown. And Ruby on Rails: Up and Running can makesure you're in on the discussion.
Ruby. Leksykon kieszonkowy
by Michael FitzgeraldPodr?czny zestaw informacji niezb?dnych w pracy programisty Ruby to obiektowy j?zyk programowania, opracowany w 1995 roku w Japonii. Dzi?ki swojej prostej sk?adni, zwartej konstrukcji i sporym mo?liwo?ciom b?yskawicznie zyska? ogromne grono zwolenników. Pojawienie si? mechanizmu Ruby on Rails, niesamowicie usprawniajšcego tworzenie aplikacji i witryn internetowych zgodnych z nurtem Web 2.0, dodatkowo zwi?kszy?o popularno?? j?zyka Ruby. W oparciu o ten j?zyk powsta?o wiele znanych serwisów WWW, odwiedzanych ka?dego dnia przez tysišce go?ci. "Ruby. Leksykon kieszonkowy" to zestawienie niezb?dnych informacji o tym j?zyku, przydatne podczas codziennej pracy programisty. Znajdziesz w nim informacje o s?owach kluczowych, operatorach, zmiennych i sta?ych. Przeczytasz tak?e o formatowaniu tekstu, wyra?eniach regularnych, operacjach na plikach i programowaniu obiektowym. Dowiesz si? ponadto, jak korzysta? z interaktywnego Ruby i RDoc. Uruchamianie interpretera Ruby S?owa kluczowe Zmienne Instrukcje warunkowe Programowanie obiektowe Modu?y Operacje na plikach Obs?uga wyjštków Metody klas Array, Hash, Object, Kernel i String Wyszukiwanie i usuwanie b??dów Usprawnij i przyspiesz swojš prac?, korzystajšc z leksykonów kieszonkowych.
Ruby. Programowanie
by David Flanagan Yukihiro MatsumotoPoznaj mo?liwo?ci Ruby! Dlaczego Ruby zdoby? tak du?? popularno???Jak wykorzysta? wyra?enia regularne w tym j?zyku?Jak tworzy? w Ruby aplikacje sieciowe? Zaprojektowany i stworzony w 1995 roku j?zyk Ruby dzi?ki swym unikalnym mo?liwo?ciom zdobywa sobie coraz wi?ksze uznanie programistów na ca?ym ?wiecie. Jak uda?o mu si? wkupi? w ?aski tego nieufnego ?rodowiska? Przyczyni?a si? do tego mi?dzy innymi prosta sk?adnia z wbudowanymi w ni? wyra?eniami regularnymi, automatyczne oczyszczanie pami?ci i przeci??anie operatorów. Dodatkowo ogromna i ch?tna do pomocy spo?eczno?? sprawia, ?e to rozwi?zanie staje si? jeszcze bardziej atrakcyjne. Uwaga! Jednym z autorów tej ksi??ki jest sam Yukihiro Matsumoto - twórca j?zyka Ruby!Ksi??ka stanowi kompletny zbiór informacji na temat j?zyka Ruby. Je?li naprawd? chcesz zrozumie? ten j?zyk, oto obowi?zkowa pozycja do przeczytania! W trakcie lektury zapoznasz si? z bogatym API, pozwalaj?cym na przetwarzanie tekstu; zrozumiesz techniki zwi?zane z wykonywaniem dzia?a? na liczbach, implementacj? kolekcji, operacjami wej?cia-wyj?cia oraz prac? wspó?bie?n? i operacjami sieciowymi. Ponadto znajdziesz tu elementy dost?pne powszechnie w j?zykach programowania, takie jak instrukcje warunkowe, p?tle czy te? operatory logiczne. Dzi?ki ksi??ce "Ruby. Programowanie" wykorzystanie metod i obiektów klasy Proc oraz stosowanie platformy Ruby nie b?dzie stanowi?o dla Ciebie najmniejszego problemu!Wprowadzenie do j?zyka RubySposoby uruchamiania programów napisanych w RubyDost?pne typy danychZastosowanie wyra?e? i operatorówSterowanie przep?ywemWykorzystanie iteratorów oraz enumeratorówObs?uga wyj?tkówZastosowanie wspó?bie?no?ciU?ycie domkni??Cykl ?ycia obiektówRefleksje oraz metaprogramowanieLiczby w RubyU?ywanie wyra?e? regularnychKolekcjeOperacje na dacie i godzinieTablice jedno- oraz wielowymiaroweObs?uga plików oraz katalogówProgramowanie siecioweObs?uga ?rodowiska RubyGwarancja bezpiecze?stwaWykorzystaj elastyczno?? i mo?liwo?ci j?zyka Ruby!
Ruby. Receptury
by Lucas Carlson Leonard RichardsonZbiór gotowych rozwišza? dla programistów u?ywajšcych j?zyka Ruby Jak przetwarza? pliki XML i HTML? Jak wykorzystywa? ?rodowisko Ruby on Rails? W jaki sposób ?šczy? Ruby z technologiš AJAX? Korzystasz w pracy z j?zyka Ruby i zastanawiasz si?, czy niektóre zadania programistyczne mo?na wykona? szybciej? Chcesz pozna? zasady programowania obiektowego w Ruby? A mo?e interesuje Ci? framework Ruby on Rails? J?zyk Ruby zdobywa coraz wi?kszš popularno??, jest wykorzystywany do tworzenia aplikacji sieciowych i sta? si? podstawš ?rodowiska Ruby on Rails. Jednak nawet najlepszy j?zyk programowania nie uwalnia programistów od ?mudnego realizowania zada?, które nie majš zbyt wiele wspólnego z tworzeniem aplikacji, czyli usuwania b??dów, implementowania typowych algorytmów, poszukiwania rozwišza? mniej lub bardziej typowych problemów i wielu innych. Ksiš?ka "Ruby. Receptury" znacznie przyspieszy Twojš prac?. Znajdziesz tu kilkaset praktycznych rozwišza? problemów wraz z przejrzystym komentarzem oraz tysišce wierszy proponowanego kodu, który b?dziesz móg? wykorzysta? w swoich projektach. Przeczytasz o strukturach danych, algorytmach, przetwarzaniu plików XML i HTML, tworzeniu interfejsów u?ytkownika dla aplikacji i po?šczeniach z bazami danych. Nauczysz si? generowa? i obrabia? pliki graficzne, korzysta? z us?ug sieciowych, wyszukiwa? i usuwa? b??dy w aplikacjach, a tak?e pisa? skrypty niezwykle pomocne w administrowaniu systemem operacyjnym Linux. Przetwarzanie danych tekstowych i liczbowych Operacje na tablicach Praca z systemem plików Programowanie obiektowe Przetwarzanie dokumentów XML i HTML oraz plików graficznych Generowanie plików PDF Po?šczenie z bazami danych Korzystanie z poczty elektronicznej, protoko?u telnet i po?šcze? Torrent Projektowanie aplikacji internetowych za pomocš Ruby on Rails Stosowanie us?ug sieciowych Optymalizacja aplikacji Tworzenie wersji dystrybucyjnych Automatyzacja zada? z wykorzystaniem j?zyka Rake Budowanie interfejsów u?ytkownika Je?li chcesz rozwišza? problem, skorzystaj z gotowej receptury -- ko?o ju? wynaleziono.
Ruby. Wprowadzenie
by Michael FitzgeraldPoznaj praktyczne zastosowania j?zyka Ruby Podstawowe konstrukcje j?zyka i zasady programowania obiektowego Operacje na tekstach, liczbach i plikach Framework Ruby on Rails Ruby -- obiektowy j?zyk programowania, wzgl?dnie nowy, bo opracowany na poczštku lat 90. ubieg?ego wieku, zdobywa coraz wi?kszš popularno??. W zakresie tworzenia aplikacji internetowych staje si? powa?nš konkurencjš dla Perla, PHP i Javy. Jest niezwykle elastyczny, posiada prostš sk?adni? i spore mo?liwo?ci, a tworzony w nim kod jest bardzo zwarty. Za pomocš Ruby mo?na pisa? zarówno proste skrypty administracyjne, jak i rozbudowane aplikacje internetowe. W budowaniu tych ostatnich niezwykle pomocny jest framework Ruby on Rails, dzi?ki któremu proces tworzenia aplikacji przebiega b?yskawicznie. Ksiš?ka "Ruby. Wprowadzenie" to podr?cznik dla tych, którzy chcš pozna? mo?liwo?ci j?zyka bez konieczno?ci studiowania zawi?ych opisów teoretycznych. Przedstawia Ruby na praktycznych przyk?adach, pokazujšc jego zastosowania w typowych zadaniach, z jakimi spotyka si? na co dzie? programista aplikacji sieciowych. Czytajšc t? ksiš?k?, poznasz elementy j?zyka Ruby i nauczysz si? programowa? obiektowo. Dowiesz si?, w jaki sposób przetwarza? dane liczbowe, teksty i tablice, pliki i katalogi oraz dokumenty XML. Przeczytasz tak?e o ?rodowisku Ruby on Rails. Instalacja j?zyka Ruby w ró?nych systemach operacyjnych Instrukcje i operatory Przetwarzanie tekstów i operacje matematyczne Operacje na systemie plików Korzystanie z plików XML Programowanie obiektowe Wprowadzenie do Ruby on Raili Wejd? do ?wiata Ruby, a pokochasz jego mo?liwo?ci!
RubyMotion iOS Develoment Essentials
by Abhishek Nalwaya Akshat PaulThis is a step-by-step book that builds on your knowledge by adding to an example app over the course of each chapter. Each topic uses example code that can be compiled and tested to show how things work practically instead of just telling you the theory. Complicated tasks are broken down into easy to follow steps with clear explanations of what each line of code is doing.Whether you are a novice to iOS development or looking for a simpler alternative to Objective-C; with RubyMotion iOS Development Essentials, you will become a pro at writing great iOS apps
Ruidos en la web: Cómo se informan los adolescentes en la era digital
by Roxana MorduchowiczEste es un libro sobre los adolescentes. También sobre las tecnologías. Y sobre ciudadanía y política. Desde estos cuatro ejes y analiza las serias dificultades que tienen los jóvenes para buscar, procesar, seleccionar, evaluar y utilizar el enorme caudal de información que circula hoy en internet. Adolescencia, tecnología, educación y cultura ciudadana: sobre estos cuatro ejes se asienta Ruidos en la web para explorar un interrogante crucial: cómo se informan los jóvenes en un universo de saberes sin límites. La pregunta es asediada a partir de múltiples enfoques: desde la forma en que los chicos utilizan internet para las tareas escolares, los nuevos hábitos propios de esta era tecnológica, su impacto en el espacio doméstico, el cambio en el concepto de autoridad cuando se trata de acudir a una fuente de información, la dificultad para distinguir entre contenidos falsos y genuinos. Y de esta problemática se desprende la preocupación por el modo en que se está formando la futura dirigencia y sus consecuencias sobre la democracia. Con un estilo ameno que no va en desmedro del rigor académico, Roxana Morduchowicz, especialista en cultura juvenil y en la relación de los chicos con las pantallas e internet, brinda un panorama de la situación, desmitifica postulados poco consistentes, se resiste a los clichés y pone en agenda un tema de interés universal.
Ruination – um livro LEAGUE OF LEGENDS
by Anthony ReynoldsEis o primeiro livro oficial ambientado no universo League of Legends. Um conto épico de magia, de vingança e de um império à beira da ruína. Quando o tio de Kalista, o jovem e narcisista Viego, se torna rei, ela promete moderar os seus instintos destrutivos, tornando-se sua leal confidente, conselheira e general militar. No entanto, Kalista vê os seus desígnios gorados quando a lâmina envenenada de um assassino atinge a esposa de Viego, Isolde, contagiando-a com uma doença incurável. À medida que o estado de Isolde piora, Viego desce à loucura e à dor, ameaçando arrastar Camavor consigo. É então que Kalista tenta uma jogada desesperada para salvar o reino, lançando-se em busca das lendárias Ilhas Abençoadas. Elas poderão ser a chave para a salvação da rainha — isto é, se Kalista conseguir encontrá-las. A corrupção cresce na capital das Ilhas Abençoadas, onde um guardião vingativo procura enredar Kalista nas suas cruéis intrigas. Ela será forçada a escolher entre a sua lealdade a Viego e fazer o que ela sabe que é certo... Porque, mesmo perante a escuridão absoluta, um gesto nobre pode fazer brilhar a luz que salvará o mundo. UM LIVRO LEAGUE OF LEGENDS
Rule Based Systems for Big Data
by Han Liu Alexander Gegov Mihaela CoceaThe ideas introduced in this book explore the relationships among rule based systems, machine learning and big data. Rule based systems are seen as a special type of expert systems, which can be built by using expert knowledge or learning from real data. The book focuses on the development and evaluation of rule based systems in terms of accuracy, efficiency and interpretability. In particular, a unified framework for building rule based systems, which consists of the operations of rule generation, rule simplification and rule representation, is presented. Each of these operations is detailed using specific methods or techniques. In addition, this book also presents some ensemble learning frameworks for building ensemble rule based systems.
Rule Technologies. Research, Tools, and Applications
by Jose Julio Alferes Leopoldo Bertossi Guido Governatori Paul Fodor Dumitru RomanThis book constitutes the refereed proceedings of the 10th International RuleML Symposium, RuleML 2016, held in New York, NY, USA during July 2016. The 19 full papers, 1 short paper, 2 keynote abstracts, 2 invited tutorial papers, 1 invited standard paper, presented were carefully reviewed and selected from 36 submissions. RuleML is a leading conference aiming to build bridges between academia and industry in the field of rules and its applications, especially as part of the semantic technology stack. It is devoted to rule-based programming and rule-based systems including production rule systems, logic programming rule engines, and business rule engines and business rule management systems, Semantic Web rule languages and rule standards and technologies, and research on inference rules, transformation rules, decision rules, and ECA rules.
Rule of Thumb: A Guide To Small Business Marketing (Rule of Thumb #2)
by David CatalanIn clear and practical language, David Catalan describes essential, need-to-know marketing concepts along with implementation strategies proven to be successful. Readers will learn: 1) The 5 important Ps of marketing; 2) How to conduct market research; 3) What branding is and brand positioning basics; 4) How to create a marketing plan; 5) How to successfully market online; 6) and more!