Ruby

This article mainly introduces the initial introduction of Ruby multithreaded programming, thread is the focus of Ruby programming learning and difficult, the need for friends can refer to the A traditional program has a separate thread that

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

This article mainly introduces the knowledge of the blocks in Ruby, including yield statements and begin/end blocks, and so on, the friends you need can refer to the Grammar: ? 1 2 3 4 5 block_name{statement1 statement2 .....}

This article mainly introduces the modules in Ruby and mixed types of knowledge, including common people often say polymorphism and inheritance and other related knowledge, the need for friends can refer to the Modules are methods, classes, and

The crushing reading of the preparation stage During the VirtualBox installation process, many pits were produced due to such reasons. Pit 1, about terminals, be sure to use the initiator to open Install the virtual machine, enter the system, we

For new entry-level developers, how to install Ruby, Ruby Gems and Rails running environments can be a problem, and this page focuses on how to quickly install a ruby development environment with a plausible path.The secondary installation method

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

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 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

No exception. Like all other open-source projects, if you want to enter the Ruby on Rails world, you will find very difficult, rarely documented, and scattered,The downloaded file lacks basic instructions. My personal experience is a typical example.

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

Ruby on rails gem install pg cannot be installed, rubyrails gem install pg -v '0.18.2'Building native extensions. This could take a while...ERROR: Error installing pg: ERROR: Failed to build gem native extension. current directory:

Analysis of Ruby source code layout and programming style, analysis of ruby source code Layout Use the UTF-8 as the source file encoding. Each indentation level uses two spaces (also known as soft tabs). Do not use hard tabs # bad - four spaces

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