Ruby

Three ways to install Ruby in Ubuntu systemChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsRuby is an open-source, dynamic programming language that has a graceful syntax for building scalable Web applications. Ruby Gems is a

Reprint Address: HTTP://WWW.TUICOOL.COM/ARTICLES/BRNQEU2I was updating the browser webdrivers for Seleno when I hit a issue with the internetexplorerdriver. I was running Selenium webdriver 2.43.1 on Windows 8.1 and using Internet Explorer 11. The

%QThis was an alternative for double-quoted strings and when you had more quote characters in a string. Instead of putting backslashes in front of them, you can easily write:>> %Q(Joe said: "Frank said: "#{what_frank_said}"")=> "Joe said: "Frank

The use of ' return ', ' Break ', and ' next ' are all related to the problem of jumping out of scope, and their difference is that different keywords jump out of the scope of the purpose, because there are blocks of code that cause some places to

Variable In the ruby world, there are five types of variables: global variables, local variables, instance variables, constant variables, and pseudo variables. Common: Global: For global use, start with $. Because it is global, the value can be

1.1 link_to General format: Link_to "XXXX", {hash}, {hash}The first is the link text, the second hash is the same as url_for, and the third hash is the tag added by the user in , for example: Code highlighting produced by Actipro

How to configure Ruby on Rails in ubuntu10.04 [from other blogs, refer to the first two webpages] Http://www.baoyalv.info/blog/panjj/Rails/2010/05/01/76 (basic steps)

Ruby on Rails can be installed in two ways. 1. Direct Installation We can download Ruby on Rails from the official website.: Http://rubyonrails.org/ After the download is complete, you can directly install it. It cannot be installed in a path

In Ruby, you check with nil? if an object is nil:article = nilarticle.nil? # => true empty?Checks if an element-like a string or an array F. E.-Is empty: # Array[].empty? #=> true# String"".empty? #=> true Rails adds the

First, let's clarify this sentence. In Ruby, the methods are dividedpublic,privateAndprotectedThree, onlypublicMethod can be used as the controller action. The error code is as follows: Controlle class ArticlesController View show.html.

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 constitutes the value of this string. Ruby handles

Ruby and linux shell are examples of common programming. What if I want ruby if I have shell? This is not the case. It is very convenient to use ruby for some small functions. For example, it is troublesome to use shell for string inversion and 1

Example of using Builder mode in Ruby Design Mode Programming, rubybuilder Let's first review the basic concepts of the design model:DefinitionSeparates the construction of a complex object from its representation, so that different representations

In Windows, Ruby + Watir is used to build an automated testing environment and read data. rubywatir Build a Watir Environment 1. watir environment tool installation package: Ruby186-26.exe: http://files.rubyforge.vm.bytemark.co.uk/rubyinstaller/2)

Use RVM to manage Ruby and gem and rvmruby in Unix Reprinted: http://www.ibm.com/developerworks/cn/aix/library/au-aix-manage-ruby/   Although Internet Relay Chat, forums, and version control tools (such as Git and Github) Make distributed

Ruby image installation, ruby Image   Because of the domestic network, the intermittent connection of resource files stored on Amazon S3 by rubygems.org fails. So you willgem install rackOrbundle installHalf a day without response.gem install rails -

Introduction to Socket programming in Ruby and rubysocket Programming Ruby provides two access-level network services. At a lower level, you can access the underlying operating system, which supports basic Sockets for clients and servers with

A summary of variable learning in Ruby and a summary of Ruby variable learning Variables in Ruby are in several forms, including local variables, instance variables, class variables, and global variables. For Beginners, they are often easy to mix up,

Methods (functions) in Ruby, ruby Functions 1. The method name and variable name naming rules in Ruby are the same (Start with a lower-case letter, and separate words with "_",), but you can add it behind the method name! (Major method) or? (Boolean

Explain the methods in Ruby and the Ruby Methods The Ruby method is very similar to the functions in other programming languages. The Ruby method is used to bind one or more repeated statements in a unit. The method name should start with a