Ruby

This article mainly introduces 3 kinds of fast sorting algorithms implemented by Ruby, this paper gives the general version of Fast sorting, the random version of fast sorting, the random version of the use of Ruby's syntax sugar, and the three

This article mainly introduces the two differences between Proc and Lambda in Ruby, this article explains that in proc and lambda, the return keyword has different meanings, check the parameters of the different ways two important differences, need

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 basic usage of hash in Ruby, including the creation of hashing and the use of some built-in methods, the need of friends can refer to the A collection of hashing-value pairs, similar to this: "Employee" => "salary"

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

Gem Common commands Gem-v # View version of RubyGems software gem help #显示RubyGem使用帮助 Gems help Example #列出RubyGem命令一些使用范例 gem install [gemname] # ann Install the specified gem package, the program will first find the GEM package from this

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

Grammar: block_name{ statement1 statement2 ..... } Here, you will learn how to call blocks by using a simple yield statement. You will also learn to use the yield statement to have parameter call blocks. The sample code that will be

Learn Ruby with me.by TigerNote: This tutorial reproduces free game Pioneer Forum, copyright belongs to the author Tiger.First articleSecond articleFirst ArticlePrefaceI'm going to start learning Ruby from today. What do you say, I haven't seen you?

Introduction: Assuming that you are a C + + developer, you need to quickly perform some prototyping with Ruby. When you pick up a ruby reference book (such as pickaxe) or browse the Ruby Web site, you'll see some familiar constructs such as class

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

Classes and instances September 5, 2016 7:35 * * * A class defines methods, and the reason for class existence is to be instantiated, that is, to create an instance of a class to get an object. An instantiated action, like this: obj =

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.

Reprinted: http://www.5itjob.net/html/86/86_itemid_1183.html Ruby on Rails is a relatively new web application.ProgramFramework, built on the ruby language. It is promoted as an alternative to the existing enterprise framework, and its goal,

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

A Date and Time Processing tutorial in Ruby and a date Processing tutorial in ruby The Time class is used in Ruby to represent the date and Time. It is based on the system date and time provided by the operating system. This type may not represent

Three methods for executing periodic tasks (scheduled tasks) IN ruby: ruby periodic 1. Preface Whether using ruby for system management or using rails for web development, periodic tasks may occur. They are scheduled to take a certain period of time

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

Learning notes TF042: TF. Learn, distributed Estimator, deep learning Estimator, tf042estimator TF. Learn, an important module of TensorFlow, various types of deep learning and popular machine learning algorithms. TensorFlow official Scikit Flow