Ruby

Install RVM and Ruby: Shell$ curl-l Https://get.rvm.io | Bash-s Stable--ruby1 $ curl-l Https://get.rvm.io | Bash-s Stable--rubyReference articles:http://blog.111cn.net/abbuggy/article/details/8170899http://www.ruby-lang.org/en/downloads/ Windows1.

What's block? In Ruby, block is not uncommon. The official definition of block is "a parcel of code". Of course, I don't think this explanation will make you more aware. A simpler description of block is "a block is a piece of code stored in a

In this chapter we will discuss more Ruby process control. Case We use case statements to test for ordered conditions. As we have seen, this is quite close to the switch of C,java, but more powerful. Ruby> i=8 ruby> case I | When 1, 2..5 | Print "

tend to the literal notation of arrays and hashes (unless you need to pass arguments to their constructors). # bad arr = array.new hash = hash.new # good arr = [] hash = {} You always use%w to define an array of strings

IteratorDefined A Ruby iterator is, simple A, can invoke a block of code. Block is typically followed by method, and the code in the block does not necessarily execute If there is a yield in method, the code in its block is executed

Implementation code: Copy Code code as follows: Class Des Require ' OpenSSL ' Require ' base64 ' ALG = ' DES-EDE3-CBC ' KEY = "mz4wjs6l" Des_key = "nz4wjs6l" #加密 def encode (str) Des = openssl::cipher::cipher.new (ALG)

Ruby is an open source dynamic programming language that has beautiful syntax for building scalable Web applications. Ruby Gems can be a good way to improve the development efficiency of ruby developers. There are several ways to install Ruby on an

When it comes to Ruby, it's just a reflex to think of rails, which seems to have only one use for Ruby, rails. Although I didn't write rails, I thought the Ruby language itself was far more attractive than the third-party framework of rails. It is a

1, http://rubyinstaller.org/downloads download Rubyinstaller and Developmentkit (note the version number to correspond)2, installation Rubyinstaller and decompression Developmentkit3. Open cmd, enter Developmentkit extract directory, execute ruby DK.

Steps 1Install homebrew, install the package required for the system through itRuby-e "$ (curl-fssl https://raw.github.com/mxcl/homebrew/go/install)"After the installation is complete, brew doctor self-TestSteps 2Installing Curl-l Https://get.rvm.io

For detailed documentation, you can click the official instructions on GitHub, which is only an English version. Https://github.com/thoughtbot/shoulda-matchers Shoulda-matchers provides test: Unit-And rspec-compatible one-liners that test common

Summary of basic operation methods for Hash types in Ruby, rubyhash 1. Create a hash:Just like creating an array, we can create a Hash instance using the Hash class: H1 = Hash. new # default value: nilh2 = Hash. new ("This is my first hash instance")

The example parses the value types and constants in Ruby AND the ruby numerical constants. Number)Integer)There are two types of integer types. If the value is within 31 characters (four bytes), it is a Fixnum instance. If the value is exceeded, it

Notes for variable reference IN Ruby: Ruby variable reference In the expression, when Ruby sees a name like a, it needs to determine whether a is a local variable reference or a call to method a without parameters. Ruby uses a heuristic method to

Some brief translations of gem (You are welcome to raise questions for discussion ). This article is mainly used in two aspects. 1. I hope to provide some help to rails colleagues. The translation level is limited. I will post Chinese and English

Common Ruby file operation code instances and ruby code instances # Create a 222. rb file and the input character File = file. open ("222.rb"," w + ") file. puts "123 \ nwadwa \ n12124124 \ ndwdw" file. close # output 222. rb content File. open ("222

Ruby uses threads to implement typical producer and consumer problem code instances. Sample Code: Copy codeThe Code is as follows:Require "thread"Puts "ProAndCon"Queue = Queue. new # Use the Queue queue for Thread SynchronizationProducer = Thread.

11 questions about Hash in Ruby and rubyhash Recently I am studying Rails because the java language I learned is the Getting Started language. a little uncomfortable. in particular, Ruby's Hash. however, you will be able to think about it in detail.

Ruby-based watir-webdriver Automated Testing Solution and Implementation (4), watirwebdriverSubsequent Ruby-based watir-webdriver Automated Testing Solution and implementation (3)Http://www.cnblogs.com/javame/p/4259468.htmlto continue... first,

Jquery implements saving selected users, while jquery implements users 1 Introduction Functional requirements: 1. Select the user interface and display it in a pop-up box. 2. Dynamic Loading of page options (department and user) 3. Save the selected