Ruby

Variables and Assignments At this point, have you noticed that there is something missing in all of the previous sample code? Do you have to enter constants, instance variables, or class variables? That's absolutely not it! This is part of Ruby's

This article to share is through Ruby to get GitHub on the Hosts file content, modified to local Ubuntu, very practical, specific you know, the need for small partners can refer to. Under Windows, we all know where the hosts file is, but in the

GitHub in the user authentication process using a dual-key mechanism, in the two-key encryption mechanism, only legitimate users have private keys, as long as the GitHub when the request can be proved to submit the request of the client to have the

This article mainly introduces the Ruby Traverse folder at the same time to compute the file md5sum, this article directly gives the implementation code, the need for friends can refer to the ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

This article mainly introduces the method_missing of Ruby Meta programming, this article introduces a phenomenon that causes death cycle when using method_missing, the friend who need can refer to the following We know the top-level domain, what is

One, the statement of the blockblock is declared after the function call, using the {..} Enclosed, or do.. End encapsulation. {} is typically used on single-line statements, do ... End is used on multiple lines of statements. (1..4). each{|v|

Ruby Arrays (arrays) and hash lists (hashes) are indexed collections (indexed collections). Both store the collection of objects, accessed by key. The key of the array is an integer. The hash list supports any object as its key. Arrays and hashes

Ruby is filled with a series of hidden variables, and we can get some interesting information from these predefined global variables. Global process variables $$ represents the currently running Ruby process. Copy Code code as follows:

Detailed installation steps: First, update pythonThe default installed Python in CentOS is version 2.4, because the new rails need to provide nodejs support, need to update Python, update the article can be directly to the link

D Guadalcanal recently wanted to do a website, in addition, the old has learned a dynamic language idea, to meet the two conditions of the programming language, Ruby, Python is the most appropriate two languages. Now Ruby on Rails is in the

We've seen the invocation of a method before, and it will let the program jump from where the method is invoked to the definition body of the method. Programs are not run in a straight line, and the order of execution is influenced by some rules and

Although I have encountered this problem in Python, it is easier to explain it in Ruby. In Ruby, there are many ways to traverse an array, and the two most commonly used are for and each: Copy Code code as follows: arr = [' A ', ' B ',

In the previous essay Ruby on Rails development from scratch (Windows) (ii)-Create project and first Hello World, we described how to use instantrails to create a project and write a simple HelloWorld page, Today on the basis of the last, write a

Website development pay attention to is the efficiency, can put an idea in the shortest time to achieve, often easy to occupy the opportunity. While the development of Ruby on Rails is highly efficient, it is not a pleasant thing to do if each

The internet is all about rake:db:sessions:create. But for the RAILS4 version, it doesn't work.Here is my own operation for the RAILS4 version.RAILS4 Session data Table creation: Please refer to this document: Http://www.cnblogs.com/heimirror/p/35369

I mainly use two plug-ins: rinari and Yari. Rinari supports fast jump to multiple files in the rails project. In addition, it provides the grep tool, which I found useful. The shortcut keys are easy to remember. Yari provides an Emacs interface

Last night, I finally met the legendary village chief. The village chief was the webmaster of rubycn. It took a long time to use Ruby. This talent started to understand Ruby and read the blog of the village chief. the other is Xin Rick, who works in

If you are a student, you should be C, C ++ and Java. There will also be some VB, or C #/. net. You may have developed some web pages. You know some HTML, CSS, and JavaScript knowledge. In general, it is difficult for us to find that some students

Ruby-implemented file self-deletion code sharing, ruby-implemented code sharing Because the File Deletion mechanism in windows is different from that in unix like, so does not guarantee that the following code can be used in windows. Which of the

Rails implements field encryption storage and rails field Encryption Solution Data is encrypted before being stored in the database.The KEY is used for decryption after reading. Implementation ActiveSupport: MessageEncryptor is a class implemented