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Portable and convenient, "Ruby Essentials" is a concise reference to the features of Ruby's command-line options, syntax, built-in variables, functions and other commonly used classes. Additional code, discussion and examples are included.
Ruby est un langage de programmation orienté objet, qui a été créé pour rendre la programmation à la fois agréable et rapide. Grâce à un interpréteur facile d'emploi, une syntaxe simple à comprendre, une orientation objet complète et des bibliothèques de classes puissantes, Ruby est devenu un langage utilisable dans une grande variété de domaines : de la transformation de fichiers à la volée à l'écriture d'applications professionnelles, en passant par la création de scripts CGI. Tous les programmeurs s'accordent à dire que Ruby est un langage très prometteur. Yukihiro Matsumoto, son créateur et l'auteur de ce livre, a conçu Ruby en prenant le meilleur des langages existants notamment Perl, Python et Smalltalk. Dépassant les frontières du japon, l'utilisation de Ruby se répand lentement mais sûrement partout ailleurs. Les programmes qu'il permet d'écrire ont un haut niveau d'abstraction, ils sont faciles à relire et à modifier. Toutes ces possibilités rendent Ruby très souple et extensible. De plus, les scripts Ruby sont portables entre les différentes plates-formes : Unix, Linux, Windows, Mac OS et BeOS. La puissance du langage vient de sa syntaxe claire et d'un riche ensemble de bibliothèques. Ruby in a Nutshell présente toutes les fonctionnalités intégrées du langage, ainsi que toutes les bibliothèques de la distribution standard. Les programmeurs garderont cet ouvrage ouvert sur leur bureau pendant qu'ils travaillent car il traite de tout ce qui concerne Ruby, des options de la ligne de commande, aux classes et modules les plus fréquemment utilisés, en passant par la syntaxe du langage, par les variables et les fonctions prédéfinies. Ce livre présente la dernière version stable de Ruby (1.6) mais s'applique également à la version de développement 1.7 et à la prochaine version stable prévue (1.8). Il offre une description complète de la syntaxe du langage et des fonctionnalités essentielles de l'interpréteur. Comme tous les livres de la série in a Nutshell, Ruby in a Nutshell est destiné à des programmeurs déjà initiés au maniement du langage, qui ont besoin d'un guide de référence exhaustif et facile à consulter.
A guide to Ruby programming covers such topics as datatypes and objects, expressions, classes and modules, control structures, and the Ruby platform.
The Ruby Programming Language is the authoritative guide to Ruby and provides comprehensive coverage of versions 1.8 and 1.9 of the language. It was written (and illustrated!) by an all-star team: David Flanagan, bestselling author of programming language "bibles" (including JavaScript: The Definitive Guide and Java in a Nutshell) and committer to the Ruby Subversion repository. Yukihiro "Matz" Matsumoto, creator, designer and lead developer of Ruby and author of Ruby in a Nutshell, which has been expanded and revised to become this book. why the lucky stiff, artist and Ruby programmer extraordinaire. This book begins with a quick-start tutorial to the language, and then explains the language in detail from the bottom up: from lexical and syntactic structure to datatypes to expressions and statements and on through methods, blocks, lambdas, closures, classes and modules. The book also includes a long and thorough introduction to the rich API of the Ruby platform, demonstrating -- with heavily-commented example code -- Ruby's facilities for text processing, numeric manipulation, collections, input/output, networking, and concurrency. An entire chapter is devoted to Ruby's metaprogramming capabilities. The Ruby Programming Language documents the Ruby language definitively but without the formality of a language specification. It is written for experienced programmers who are new to Ruby, and for current Ruby programmers who want to challenge their understanding and increase their mastery of the language.
Creating robust software requires the use of efficient algorithms, but programmers seldom think about them until a problem occurs. Algorithms in a Nutshell describes a large number of existing algorithms for solving a variety of problems, and helps you select and implement the right algorithm for your needs -- with just enough math to let you understand and analyze algorithm performance. With its focus on application, rather than theory, this book provides efficient code solutions in several programming languages that you can easily adapt to a specific project. Each major algorithm is presented in the style of a design pattern that includes information to help you understand why and when the algorithm is appropriate. With this book, you will: Solve a particular coding problem or improve on the performance of an existing solution Quickly locate algorithms that relate to the problems you want to solve, and determine why a particular algorithm is the right one to use Get algorithmic solutions in C, C++, Java, and Ruby with implementation tips Learn the expected performance of an algorithm, and the conditions it needs to perform at its best Discover the impact that similar design decisions have on different algorithms Learn advanced data structures to improve the efficiency of algorithms With Algorithms in a Nutshell, you'll learn how to improve the performance of key algorithms essential for the success of your software applications.
A tutorial and reference to the object-oriented programming language for beginning to experienced programmers, updated for version 1.8, describes the language's structure, syntax, and operation, and explains how to build applications. Original. (Intermediate)
Although Yukihiro Matsumoto released Ruby in 1995, it would take more than a decade for the programming language to achieve widespread adoption. Today, Ruby is one of the fastest growing coding languages, and it is behind major sites like Hulu and Twitter. This book describes the history of the language, the relationship between Ruby and Ruby on Rails, and why Ruby is an ideal first language for new programmers, complete with tips on how readers can get started.
Updated 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 symbols Variables, pre-defined global variables, and regular expressions Conditional statements, method use, classes, and exception handling Methods for the BasicObject, Object, Kernel, String, Array, and Hash classes Time formatting directives New syntax since Ruby 1.9
Ready to transport your web applications into the Web 2.0 era? Head First Rails takes your programming -- and productivity -- to the max. You'll learn everything from the fundamentals of Rails scaffolding to building customized interactive web apps using Rails' rich set of tools and the MVC framework. By the time you're finished, you'll have learned more than just another web framework. You'll master database interactions, integration with Ajax and XML, rich content, and even dynamic graphing of your data -- all in a fraction of the time it takes to build the same apps with Java, PHP, ASP.NET, or Perl. You'll even get comfortable and familiar with Ruby, the language that underpins Rails. But you'll do it in the context of web programming, and not through boring exercises such as "Hello, World!" Your time is way too valuable to waste struggling with new concepts. Using the latest research in cognitive science and learning theory to craft a multi-sensory learning experience, Head First Rails uses a visually rich format designed to take advantage of the way your brain really works.
Five hundred years ago no-one died of stress: we have invented this concept and now we let it rule us. Using hilarious personal anecdotes from her experiences in 'celebrity land' as well as insightful tales from her own battle with depression, Ruby Wax introduces a scientific solution to modern problems: mindfulness. Outrageously witty, smart and accessible, Ruby Wax shows ordinary people how and why to change for good. With practical exercises to incorporate into your daily life, and a step-by-step six-week course based on her studies at Oxford University, A Mindfulness Guide for theFrazzledis the only guide you need for a happier, calmer life.