Ruby Pocket Reference by Michael Fitzgerald PDF

By Michael Fitzgerald

ISBN-10: 0596514816

ISBN-13: 9780596514815

Even supposing Ruby is a straightforward language to benefit, within the warmth of motion you could locate that you just cannot be mindful the proper syntax for a conditional or the identify of a style. this useful pocket reference deals short but transparent motives of Ruby's middle parts, from operators to reserved phrases to information buildings to approach syntax, highlighting these key gains that you're going to most probably use on a daily basis while coding Ruby.Whether you will have come to Ruby due to the Rails net improvement framework - Ruby's killer app - or just simply because it is a really fresh, strong and expressive language that is precious for many purposes, the Ruby Pocket Reference is geared up that can assist you locate what you wish fast. This publication not just gets you in control on how Ruby works, it will give you a convenient reference you should use wherever, anytime.In this e-book, you discover crucial info on: Reserved phrases, operators, reviews, numbers, variables, levels, and emblems Predefined variables andglobal constants Conditional statements, technique use, periods, and modules (mixins) Lists of tools from the article, String, Array, and Hash periods and the Kernel module sprintf andtime formatting directories Interactive Ruby (irb) and the Ruby debugger Ruby documentation you furthermore may get details at the RubyGems package deal software and Rake, a construct instrument just like make.. if you are utilizing Ruby day-by-day and simply wish the facts-fast-Ruby Pocket Reference is your e-book.

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Download e-book for kindle: Ruby Pocket Reference by Michael Fitzgerald

Even if Ruby is a simple language to benefit, within the warmth of motion you could locate that you simply cannot bear in mind the proper syntax for a conditional or the identify of a style. this useful pocket reference deals short but transparent causes of Ruby's middle elements, from operators to reserved phrases to facts buildings to approach syntax, highlighting these key beneficial properties that you're going to most probably use on a daily basis whilst coding Ruby.

Read e-book online Ruby on Rails Enterprise Application Development: Plan, PDF

Ruby on Rails company program improvement through Elliot Smith and Rob Nichols objectives a brand new area of interest within the Rails international of released books. Its target is to attach the entire dots that make up general Rails improvement for builders who've been during the tutorials, yet ask yourself what do I do next?

The concentration of this e-book is breadth and never intensity. The authors do an exceptional activity of balancing the reason of crucial Rails innovations whereas letting the reader understand once they are coming near near a extra complex subject that wont be lined in depth.

Throughout the e-book the authors keep on with a fictional, but lifelike state of affairs during which Rory the IT man implements an easy web-based contacts administration program. every one bankruptcy builds at the past strolling the reader throughout the entire means of improvement to creation deployment.

There is not any Rails improvement till bankruptcy four, pg ninety one. The emphasis of the 1st ninety pages is knowing what Rails is and why you will use it, in addition to introducing the matter situation that would be used through the ebook. this might be an even bigger flip off then it used to be, however the authors made up for this a bit jogging the reader via fitting every thing required for Rails improvement on a number of working systems.

Rather then concentrate on a unmarried platform for improvement or creation the authors use a combined atmosphere of Ubuntu Linux, OSX and home windows and a move platform Eclipse IDE. additionally they take some time to stroll the reader via install and setup of every platform because it relates to Rails development.

The majority of the advance during this e-book sticks to the performance incorporated in Rails itself. in terms of center elements of Rails the authors do a superb activity of overlaying them: migrations, versions, validations, institutions, controllers, filters, perspectives and examine helpers.

Plugins are usually not lined with the exception of acts_as_attachment, that's now deprecated in prefer of attachment_fu.

The basically factor I had with the ebook was once with the sections on checking out. The authors hide unit and sensible checking out with the integrated Rails trying out framework. regrettably, the instance checks are terrible and shouldn't seem in creation caliber code. The sections on checking out should still in simple terms be used to appreciate how the integrated trying out framework works in Rails and never as an instance for writing exams. it really is too undesirable that the authors didnt conceal integration checking out either.

A great point that did pop out of the trying out sections during this booklet is the encouragement for builders to write down checks which disclose insects earlier than solving them. Its the one approach to make sure you quite fastened it.

Rails 1. 2. three is used through the ebook so any alterations, advancements or deprecations in Rails 2. zero usually are not coated. If the reader follows the publication with Rails 1. 2. three they need to haven't any concerns strolling via and constructing the code themselves. If the reader follows the ebook with Rails 2. zero they need to pay attention to a number of the adjustments, these are available at http://weblog. rubyonrails. org/2007/12/7/rails-2-0-it-s-done

The issues that caught out to me were:

* view template dossier naming considerablyntions
* the verbosity of now not having named routes

The authors make the effort to stroll the reader via establishing and utilizing Subversion as a vital part of Rails software program improvement. additionally it is constructing and utilizing Apache and Mongrel to serve Rails. because the publication strikes from improvement to construction deployment the consumer is proven the best way to installation immediately from Subversion to their construction server utilizing Capistrano.

There have been a couple of minor typos and one redundant sentence on web page fifty two. this can be significantly under different technical books that i have read.

The in simple terms enormous crimson sections marked in my replica are those on trying out. Take these examples with a grain of salt.

Overall, nearly all of the booklet is full of stable recommendation for beginner Rails builders like, don't wait till your program is equipped sooner than you create and try the construction atmosphere and contain the tip clients in the course of the process.

If you're a beginner Rails developer who comprehend bits and items of Rails this ebook does a very good task of connecting the opposite dots as the authors take some time to head throughout the complete technique of improvement to creation. however when you've got a very good take hold of most often Rails improvement strategy you could pass this booklet.

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Download e-book for kindle: Learning ExtJS - Fourth Edition by Carlos Méndez

While you are a JavaScript developer who desires to use the Ext JS framework, this can be the booklet for you. This advisor comes in handy for you in case you re new to Ext JS five or are a professional specialist. HTML, CSS, and JavaScript event is needed which will comprehend and get the main out of this publication.

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Method (from Kernel). Redefine gimme with an if statement: def gimme if block_given? " } # => Say hi to the people. gimme # => I'm blockless! Redefine gimme to contain two yields, then call it with a block: def gimme if block_given? " end end gimme { print "Say hi again. " } # => Say hi again. Say hi again. Another thing you should know is that after yield executes, control comes back to the next statement immediately following yield. Procs Ruby lets you store procedures—or procs—as objects, complete with their context.

Starts at the beginning of the file (default mode). r+ Read-write. Starts at the beginning of the file. w Write-only. Truncates existing file to zero length, or creates a new file for writing. w+ Read-write. Truncates existing file to zero length, or creates a new file for reading and writing. a Write-only. Starts at the end of file, if the file exists; otherwise, creates a new file for writing. a+ Read-write, starts at the end of the file, if file exists; otherwise, creates a new file for reading and writing.

Horse_name # => Doc Bar Classes | 37 Accessors Ruby simplifies the creation of getters and setters by metaprogramming with the methods attr, attr_reader, attr_ writer, and attr_accessor, all from the Module class. bark # => Woof! By calling attr with :bark and true as arguments, the class Dog will have the instance methods bark and bark=. If you call attr with only the :bark argument, Dog would have only the getter method bark. ) The attr_reader and attr_writer methods accept as arguments the names of one or more instance variables, then create corresponding methods that return (attr_reader) or set (attr_writer) the values of each instance variable.

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Ruby Pocket Reference by Michael Fitzgerald

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