Ruby

1. What is Ruby? Ruby is a simple object-oriented programming language that is easy to get started with and powerful. She was a Japanese Yukihiro Matsumoto (everyone called him Matz.) was first released in 1995. Ruby has borrowed a lot from the

Just learn ruby, it happens algorithm teacher encourage in unfamiliar language to write algorithm, I use Ruby Bar ~ ~In other words, Ruby is really awesome, and it's a lot of intuitive way to use ... In the infinite worship .... During the period I

Unary operation we all know that the expression operator has only one input value. This is common in both C and Java. Today we'll explore the unary operator overload in Ruby.Unary operators are: +–*! &, in order to avoid confusion with numerical +–,

After the mail server receives the message, the service push notifies the program. Is there any way to achieve it? 1. Client Polling2, the server initiative push. First of all, get acquainted with the protocol for sending and receiving

ObjectiveSee a lot of articles say Ruby environment is very difficult to build on windows, there will be a variety of strange problems, so it is recommended to Linux and Mac installation development. But I followed the tutorials and the questions

In the Users/index view, you can automatically make a link to a page by using just one line of code: I did not tell it to change which target array to page, but it can be intelligently positioned to@usersVariable. It's amazing, can't help

Online information There are many, but a lot of pits, some have expired, and some do not conform to the current arrangement of some seemingly also with the OS system version has a relationship, do not copy, according to the actual situation to

1. Invocation of the method2. Custom method3. Custom methods with default values4. Custom method with return valueA method, or a function, actually contains a piece of code to perform a particular process.def Add (a=3,b=2) return A +bend'

System RequirementsFirst determine the operating system environment, it is not recommended to engage in Windows, so you need to use: Mac OS X Any Linux distribution (Ubuntu,centos, Redhat, ArchLinux ...) Strong novice use

For newly-introduced developers, how to install Ruby, the operating environment of Ruby Gems and Rails can be a problem, this page focuses on how to quickly install a ruby development environment with a reliable path.The secondary installation

Would have done a concurrent fetch, that Ruby1.9 added after the fiber is similar to the Golang kind, can be implemented concurrently run, but found that the efficiency has not improved, in order to confirm that fiber is not in parallel execution,

In the discussion of the object model, a preliminary understanding of the class, about the class itself, there is a lot of knowledge to learn.Class definitionIn Ruby, you can use the Class keyword or the Class.new method to define a class, in Ruby,

In Ruby we define a WC method that is used to count the number of lines of text, words, and characters that appear in a file, and the Ruby Code program is as follows:def WC (filename) nline = Nword = nchar = 0 File.Open (filename) do

There are 11 chapters in total, a simple Weibo system.The development is driven by testing, so there are a lot of test code in the book. At the beginning, I felt very uncomfortable. After a while, I still don't like this development method. Finally,

Update:An updated version of these instructions for Ubuntu 12.10 (quantal Quetzal) is available here. 1. Install the prerequisites sudo apt-get install openjdk-7-jdk libjpeg62 libwebkitgtk-1.0-0 git-core Although Aptana Studio doesn't officially

Explain how to use Cucumber in Ruby on Rails, railscucumber Use the @ wip label to mark your unfinished scenarios. These scenarios are not considered and are not marked as test failures. When an unfinished scenario is completed and the function test

Rescue star for spelling mistakes in Ruby programming: did_you_mean gem I often encounter spelling errors in Ruby development when class names or method names are misspelled. But I don't know it's just a spelling mistake. I will repeat it:

Programming Ruby Reading Notes, programmingruby In Ruby, you can call constructor to create an object. Song1 = Song. new ("Ruby ") Ruby rarely processes single quotes. Except for a few exceptions, the literal content entered into the string

I have the opportunity to try Rails again, but I only came into contact with 2 and now it has become 4. It seems that the current installation is faster than the original one .. Rails 4 installation For RVM InstallationCopy codeThe Code is as

[Solid Ruby Basics] Ruby Quick Start, solid ruby Quick Start Address: http://www.cnblogs.com/aiweixiao/p/6664301.html Document outline   Scan the public account1. Ruby Installation 1.1) [install Ruby] Ruby installation on Linux/Unix Ruby