Ruby

This article mainly introduces the concept of class objects in Ruby, is the basic knowledge of Ruby learning, need friends can refer to the Object-oriented programs involve classes and objects. A class is a blueprint that is created from an

Ruby is a purely object-oriented language, and all projects seem to be in Ruby as an object. Each value in Ruby is an object, even the most primitive thing: a string, a number, or even true and false. Even if a class itself is an object, it is an

This section will show you how to access a database using Ruby. The Ruby DBI module provides a database-independent interface for Ruby scripts similar to the Perl DBI module. DBI, the Database independent interface, represents a Ruby-independent

1. Returns the length of the string Copy Code code as follows: Str.length => Integer 2. Determine if the string contains another string Copy Code code as follows: Str.include? Other_str => True or False

Most Ruby programs, their design, logic, and action, are all centered around objects. The main task of writing a Ruby program is to create objects and then give them the ability to perform actions. Ruby is an OOP language, an object-oriented

Written in front: The first time, write serial Ah, hope to oneself and you reader a little help, understand a little bit rubyonrails development on the situation. Can help a little, that is the reason to insist. ^_^ Encyclopedia of Life:

Ruby on Rails is a ruby-based Web development framework that follows the MVC pattern. Using ROR will give you a faster and more rapid web development experience. Compared to Java EE, the framework makes web development faster and more efficient and

Ruby is a scripting language for simple and fast object -Oriented programming (object-oriented programming).Brief introduction Ruby is open source and is available on the web for free, but requires a license . Ruby is a universal, interpreted

In my previous blog post, I documented how Ruby operates the environment configuration of the MongoDB database in a Windows environment. The last step describes the driver package for installing MongoDB. Using the Gem Online installation method. The

One: Install Ruby1, in http://rubyinstaller.org download needs the Ruby version, because is EXE file, so, you can install directly.After the installation is complete, CMD runs on ruby-v to display the version number. If the ruby version number is

Refer to Http://guides.rubyonrails.org/action_mailer_basics.html In the security of your Gmail account, start with two-step verification (Link: https://myaccount.google.com/security) to generate an application-specific password, which you need

Here simply add a few validations, non-empty, minimum length, uniqueModifying a modelModify the App/models/post.rb file as follows:Class Post True validates:title,: length = {: Minimum =>2} validates:title,: Uniqueness = {: message = = ' Already

1. Goal: Mastering MVC and Rest, generators, migrations, routes, embedded RubyThis book deals with the Rails,ruby language, the test framework (minitest) that rails uses by default, the Unix command line, HTML,CSS, a small amount of javascript, and

Blank characters include space characters, tabs, and line breaks. They are not tags, but are used to separate different tags, so that they are not merged into a tag. Note:Sometimes blank characters are required, and some are actually forbidden. 1

Address: http://www.linuxidc.com/Linux/2010-12/30380.htm Ubuntu is updated with Ruby and rails, but not the latest version. The ruby version is about 1.9.1, but rails version is only 2.3.5, Which is outdated, so you have to download

Ruby Plus is a site offering free Ruby and rails related screencasts recorded by Bala paranj, much in the same vein as Ryan Bates 'railscasts. the screencasts are generally similar in length and overall format to those from railscasts. so far there

Ruby is an object-oriented metaprogramming language that surprised many developers and even raises the question: is there a really better language than Java and C? This article will give a preliminary discussion on the ruby language and try to

In-depth analysis of the use of the command mode in Ruby Design Mode Programming, ruby Design Mode The command mode is the design mode with a high usage of the object behavior type, alias: Action, Transaction) Intent: encapsulate a request as an

Annotations, variable declarations, Array Operations, and Ruby variables in the ruby tutorial I read an article "PHP basic tutorial" on "blog Park" two days ago and introduced PHP. D guago also wrote a "Ruby getting started tutorial" when learning

Detailed explanation of the iterator IN Ruby and the Ruby Generator D guago recently wanted to build a website. In addition, he had long had the idea of learning a dynamic language. Among the programming languages that meet two conditions, Ruby and