Ruby Pocket Reference. 2nd Edition (e-book) Gliwice

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 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 Spis treści: 1. Ruby Pocket Reference Introduction Conventions Used in This Book Using Code Examples Safari Books Online How to Contact Us Acknowledgments Running Ruby Running the Ruby Interpreter Interactive Ruby (irb) Using a Shebang Comment on Unix/Linux Associating File Types on Windows Rubys Keywords Rubys Operators Comments Numbers Variables Local Variables Instance Variables Class Variables Global Variables Constants Parallel Variable Assignment Symbols Predefined Global Variables Keyword Literals Global Constants Ranges Methods Block Arguments Return Values Method Name Conventions Default Arguments Variable Arguments Aliasing Methods Blocks The yield statement Procs Conditional Statements Flow Control The if Statement Negation Multiple tests Statement modifier for if The else statement The elsif statement The unless Statement Statement modifier for unless The while Statement Statement modifier for while The until Statement Statement modifier for until The case Statement The for Loop The Conditional Operator Executing Code Before or After a Program Classes Reopening a Ruby Class Instance Variables Accessors Class Variables Class Methods Singletons Inheritance Load path Abstract Classes Anonymous Classes Public, Private, and Protected Modules and Mixins Files Creating a New File Opening an Existing File ARGV and ARGF Renaming and Deleting Files File Inquiries File Modes and Ownership The IO Class Exception Handling The rescue and ensure Clauses The raise Method The catch and throw Methods BasicObject Class BasicObject Public Instance Methods Object Class Object Public Instance Methods Kernel Module String Class String Literals String Concatenation Expression Substitution General Delimited Strings Here Documents Escape Characters Character Encoding Regular Expressions Regular Expression Reference Tables Character classes Anchors Character shorthands POSIX bracket expressions Quantifiers Character properties Unicode character categories Unicode scripts Modifiers (options) Special global variables Encoding overrides Extended groups Back references Subexpression calls String Methods Public class methods Public instance methods Array Class Creating Arrays Array Class Methods Array Instance Methods Hash Class Creating Hashes Hash Class Methods Hash Instance Methods Time Formatting Directives Ruby Documentation RubyGems Rake Ruby Resources Glossary Index O autorze: Michael Fitzgerald, który ma za sobą ponad 20 lat doświadczenia w pisaniu książek i programowaniu, opisuje Ruby jako swój "jak dotąd ulubiony język". Michael jest również autorem książek "Learning XSLT, XML Hacks i Ruby Pocket Reference" oraz współautorem "XML Pocket Reference" (wszystkie opublikowane przez O...Reilly).