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Install Ruby on Rails in Ubuntu 15.04 In this article, we will learn how to use rbenv to install Ruby on Rails in Ubuntu 15.04. We chose Ubuntu as the operating system because Ubuntu is an operating system with many packages and complete documents in the Linux release, so I think this is the right choice. If you have not installed the latest Ubuntu, you can start by downloading the iso file. Install

Comparison of Ruby and Python syntax In fact, Ruby is very similar to Python, and it is much closer than most other languages, so you can use whatever you like (to be honest, although it is also nonsense ). Although there are some differences in syntax, most of them are syntax sugar. I am a little scar

Author: http://www.ruby-cn.org/reprinted please keep 1. IntroductionRuby is written by yukihiro Matsumoto in Japan. It is a simple and easy-to-learn object-oriented scripting language. Like Perl, Ruby has rich functions such as text processing and system management, but Ruby must be simple, easy to understand and expand. It is similar to Python, but it is far from famous in China. Generally, it has the foll

A constant begins with a capital letter. It should be assigned up to one time. In the current version of Ruby, the re-assignment of constants produces only warnings rather than errors (the Non-ansi version of EVAL.RB does not report this warning) Ruby>fluid=30 30 Ruby>fluid=31 31 Ruby>solid=32 32

RVM is a command-line tool that provides the management and switching of a convenient, multiple-version Ruby environment. https://rvm.io/ If you are going to learn ruby/rails, RVM is one of the essential tools. All commands here are operated under user privileges, and any command is best not to use sudo.RVM Installation $ curl-l Get.rvm.io | Bash-s Stable $ source ~/.BASHRC $ source ~/.bash_profi

Well explained, it should be clear that a lot of Ruby Symbol detailed Cause The recent learning of Ruby on Rails is indeed an excellent database development framework. In the process, however, it is found that there are a number of statements similar to the following in the rhtml file in the View folder: This is a point to the link, if there is no colon the meaning of the sentence is very good to understand

Recently took over a mobile phone project. In the process of setting up the environment, some problems have been encountered, recorded in the following, and a personal solution.Development environment Win2003; JetBrains RubyMine6.3.31, download the latest version of Ruby, (Rubyinstaller-2.0.0-p598.exe, the latest version)Official website:http://rubyinstaller.org/downloads/2. Install RubyDouble-click Install, the installation process appears the follow

1. The following two reasons are causing your Rails application to slow down: Ruby and rails should not be used as the preferred place for Ruby and rails. (with Ruby and Rails doing a job that's not good for doing) Excessive memory consumption leads to a lot of time for garbage collection. Rails is a delightful framework, and

Output to: http://robbin.javaeye.com/blog/57474 There is almost no controversy in the MACOs platform, and textmate is used by everyone. However, there are many ides available for selection and use on the Windows platform, but each has its own strengths and weaknesses. Based on all the ruby ide I have used. Ror ide on Windows platforms is mainly divided into two categories: one is a heavyweight full-featured IDE, such as Eclipse, netbeans, ide

Why should O M engineers learn Python or Ruby? 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 are able to master languages beyond these languages. This is a pity, because there are many programming languages that can make you a better programmer. In th

Address: http://www.linuxidc.com/Linux/2010-12/30380.htm Ubuntu is updated with Ruby and rails, but not the latest version. The ruby version is about 1.9.1, but rails version is only 2.3.5, Which is outdated, so you have to download the latest version.Source codeCompile and install. 1. Prepare the library used for installation $ Sudo apt-Get install GCC g ++ build-essential libssl-dev li

From the example we demonstrated above, you may be surprised that the ruby we declared earlier is an object-oriented language.So we can prove it through this chapter. We will introduce how to use Ruby to create classes and objects, and introduce what Ruby is more powerful than most object-oriented languages.Let's implement one million dollar product step by step,

Ruby, as a powerful and flexible programming language, has been used by many programmers. They have gained great benefits in the use process. Today, we will introduce one of the following skills: Ruby's application skills for configuring Mysql DBI. Parse Json IN Ruby Ruby module Win32API calls win32API directly How to call win32ole IN

Ruby on Rails (also called Rails) is a Ruby Framework for Internet applications that support databases, what are the core features of Ruby on Rails and the articles into the world of Ruby on Rails reported before BKJIA?" This article focuses on how to optimize the performance of Ru