Ruby

This article mainly introduced the Ruby definition private method (private) Two ways, this article directly gives the code example, needs the friend to be possible to refer to under ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2

Ruby's installation can go to Ruby's official web site to download the Ruby1.56 Windows Installer package, install the after installation, open the DOS window, input ruby-v display Ruby 1.8.6 (2007-03-13 patchlevel 0) [I386-mswin32] shows that Ruby

Rbenv is used to manage multiple versions of Ruby in the user directory installation and use, and RVM two select one to use. Specific differences are documented in the rbenv, and there are also discussions in the community.System Requirements OS X:

Let's write a simple ruby program. All Ruby source files will be in extension. RB. So, put the following source code in a test.rb file. #!/usr/bin/ruby-w puts "Hello, ruby!"; Here, suppose you have a Ruby interpreter installed, which

Loop structures are essential in programming languages, so loops in Ruby have their own custom rules. And we are concerned about the structure of the cycle, we need to know two factors: 1 The condition of the loop; 2 the contents of the loop

Because of its simple and convenient data structure, JSON has gradually become the data format of the mainstream data interchange on the Internet. Before discussing the JSON conversion method for nested objects (Nested object), let's look at a

Range is a class of range objects that can be defined by using the range operator "..." Or "...", ".." The generated Range objects include the start and end points. ... "The resulting Range object does not include the start and end points, the range

Type of a value (1) Integral typeThe integer type is divided into two, if within 31 digits (four bytes), that is the Fixnum instance. If more than, that is the Bignum instance. Copy Code code as follows: #整型 integer below are some

Brief introduction Automated integration testing is a very important part of Web applications, but because these test cases rely too much on specific Web page implementation details, this poses great challenges to authoring and maintenance. There

Ruby: Multi-threaded Download blog posts to local full code Copy Code code as follows: #encoding: Utf-8 Require ' net/http ' Require ' thread ' Require ' Open-uri ' Require ' Nokogiri ' Require ' date ' $queue =

1, with java,c# and other languages of the Try...catch...finally...throw, Ruby Begin/end ... rescue...ensure ... raise to handle the exception, retry can be used in rescue. You can use either rescue or ensure, when both are used, rescue must be in

This page focuses on how to quickly install a Ruby development environment with a reliable path.System RequirementsFirst determine the operating system environment, it is not recommended to engage in Windows, so you need to use: Mac OS X

Ruby is completely object-oriented, all data is objects, there is no independent method outside the class, all methods are defined in the class.I. Definition syntax for classesThe definition of a class begins with the Class keyword, followed by the

In rubymine, if the Ruby interpreter chooses 1.9.3, The ruby-debug-base19x must be installed during debugging, but nothing else can be installed, even the ruby-debug-base193, but this often reports an error. Find the answer on stackoverflow.com.

Preface In routing loading, I roughly introduced how to load the simplest route in rails. In this article, I will introduce how more complex named route and restful-related resources in the rails system are loaded. In order not to repeat too much

1. Create a user 2. Assign PermissionsFirst, add a user group: Groupadd humouAdd a user, set the main directory and shell path Useradd-G humou-D/home/humou-S/bin/bash-M humouIf the shell path is set incorrectly, the user cannot log on.Or

After several days, the Ror environment was finally ready. In order to prevent future forgetting and minimize detours, we made a special record ========================================================== ===== Installation Process 1. Install

Install and configure Ruby debug tool ruby-debug-base19 in Windows, rubydebug Gem uses proxy in two ways: Method 1: >>SET http_proxy=http://ip_or_host:PORT >>gem install the_package_name Method 2: >>gem list -p http://user:passwd@ip_or_host:8080 -r

Html forms, div labels, etc...., div ...... I. Forms Function:The form is used to transmit data to the server to realize interaction between the user and the Web server. A form can contain input series tags, such as text fields, check boxes, single

20170305 Shenzhen Meetup CSS in Rails, JS reference link analysis, 20170305 meetup New users are on the road. Please remind me of any errors CSS and JS reference Link Analysis in Rails I. Rails static file storage location Ii. CSS