Ruby

This article mainly introduces the regular expression in Ruby, is the important knowledge of Ruby learning, need friends can refer to the following Regular expressions are a special sequence of characters that can help match or find other strings

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 some of the basic methods of manipulating strings in Ruby, including the processing of string compression and decompression, the need for friends can refer to the following A string object in Ruby holds and

Installing Ruby with Upgrade RubyGemstip: If you are prompted for permission issues during the installation process in the Ubuntu environment, you can use sudo make and sudo makes install. 1.Ruby Installation wget

Summary, ruby program consists of one or more Ruby source files, the source file consists of modules, the module has control structure, class objects, methods, and expressions and other elements, following this idea to sum up Ruby's program

Well explained, it should be clear that a lot of Ruby Symbol detailed Cause The recent learning of Ruby on Rails is indeed an excellent database development framework. In the process, however, it is found that there are a number of statements

Summarize the class extensions that you encounter in your work: 1, class Inheritance: When more than one class is common to many methods, the common method part can be extracted, and the required class is related to inheritance. Example:

If you have a property named balance in a model object, you can get the value of the property by using the index operator, you can use a string or tag, where we use the tag, for example: Account[:balance] #=> Get value Account[:balance] = 0.0 #=>

In the past few years, the open source Web development Framework Ruby on Rails has created a small upsurge in the web world. Like many things in the software world, its role is somewhat exaggerated. Nothing is as magical as what people advertise it.

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

1. Arrays and Ranges2, BlockConvention: Use curly braces when there is only a single line of code in the block, when the block is a long line of code, or when there are many rows using do. End form. For example:>> (1..5). Each{|i| putsi} (1..5).

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

Https://ruby-china.org/wiki/install_ruby_guideHow to quickly and correctly install Ruby and rails runtime Environments For new entry-level developers, installing Ruby, Ruby gems, and rails running environments may be a problem. This section

Ruby development environment and rails development environment: You only need to install the following plug-ins to implement a powerful Ruby rails development environment that supports syntax highlighting, Automatic completion, and syntax error

In this article, I read "Creating a Ruby on Rails Development Environment on Mac OS X" and sorted it out following his steps. The content is basically the same, and some images are added. If you want to see the original content, please refer to the

Tutorial on Ruby on Rails to implement the most basic user registration and login functions, rubyrails It is very convenient to implement the user registration and login functions in Rails. For example, you can use the Devise class to implement the

Key points for creating Rails Applications in China (in windows 7, Rails 4.2.0) and rails4.2.0   1. the application created using the rails new command will not succeed when the bundle install is automatically executed. Based on the error prompt,

The concept of class objects in Ruby and the concept of ruby objects Object-oriented Programs involve classes and objects. A class is a blueprint created from an individual object. In object-oriented terms, we say that James's bicycle is an object

Explain the code block object Proc in Ruby, and explain the ruby object proc. Proc object Proc is a block conversion object. There are four methods to create a Proc: Sample Code # Method 1 inc = Proc. new {| x + 1} inc. call (2) #=> 3 # method 2 inc