eloquent ruby

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Install Ruby later in Ubuntu

Install and uninstall Ruby in Ubuntu In ubuntu12.04, run the following command to install Ruby 1.8 by default.1 $ sudoapt-Get installruby I. The following describes how to install ruby1.9.3 (in some versions of Linux, 1.8 must be installed first) Install curl first. If you have installed curl, you will be prompted that curl is already in the latest version.1 $ sudo apt-Get installcurl Next, install the

Which one should ruby and python learn?

0. Reply content: First, let's talk about your point of view: you must first understand what the goals of these script languages are, and the answers to different goals are different. Let's talk about my personal experience (perl ruby python) for your reference: 0.) at school, I learned about perl ruby and python. Perl is a bunch of weeds, and the impression is like a village girl on a construction site (n

Use Ruby to write a tutorial on a command line application that accesses Twitter _ruby topics

Brief introduction Twitter is now the leader in social networking. Twitter only allows users to post no more than 140 characters, and who would have guessed that the previously insignificant small web site is now worth more than 1 billion of billions of dollars, has millions of users, has built a lot of apps on Twitter, and that new developers are ready to invest in the wave. This article does not intend to introduce Twitter (in fact, it is not necessary). Instead, this article describes how t

Build RubyMine + Ruby On Rails + MySQL development environment in Windows

Build RubyMine + Ruby On Rails + MySQL development environment in Windows I recently took over a mobile phone project. Some problems have been encountered during the environment setup process. We have recorded the problems in the following article and offered our solutions. Development Environment: Windows 2003; JetBrains RubyMine6.3.3 1. download the latest version of ruby(rubyinstaller-2.0.0-p598.exe, the

Ruby + Apache + MySQL for Linux

Ruby + Apache + MySQL for Linux Ruby is a very interesting open-source scripting language that supports Windows/Linux and other platforms. It can be used to develop games, network applications, and system management,CGI program, etc. It is concise, elegant, and highly efficient to execute, and now there are many mature frameworks to support it. However, it is currently not widely used in China. If you are i

Ruby pioneers talk about the shortcomings of this programming language

Ruby pioneers talk about the shortcomings of this programming language Ruby creators song benzihong and Rails creator David Heinemeier Hansson make frank comments on the language. As a dynamic language originally released in 1995, Ruby was widely praised for its convenience advantage and often appeared on the popular language selection list. However,

Simple comparison of python and ruby syntax, pythonruby syntax

Simple comparison of python and ruby syntax, pythonruby syntaxEnter the interactive Interpreter Python Irb/pry Set encoding # coding = UTF-8 # Coding: UTF-8 Package management easy_install/pip gem Pip install Markdown Gem install Markdown Annotate python single line comment # start Python multi-line comments use three single quotes (''') or three single quotes ("""). ''' Multi-line comment 1 Multi-line comment 2 '''

Programming ruby-Regular Expression

Regular Expression Most of Ruby's built-in types and otherProgramming LanguageVery similar. Mainly include strings, integers, floats, and arrays. However, only the script language, Such as Ruby, Perl, and awk provide support for built-in expression types. It is a powerful text processing tool, though the regular expression is relatively hidden. They are much different from simply adding interface class libraries. Regular Expressions are a simp

Further delve into the class and object concepts in Ruby _ruby topics

Ruby is a purely object-oriented language, and all projects seem to be in Ruby as an object. Each value in Ruby is an object, even the most primitive thing: a string, a number, or even true and false. Even if a class itself is an object, it is an instance of class. This chapter will cover the object-oriented aspects of Ruby

Compare Perl, PHP, Python, Java, and Ruby]

Original: http://levi.cg.am /? Cat= 246 ! Preview · The development trend of language must be dynamic and dynamic combination and flexible · Perl is concise and obscure, python is elegant and clear, Ruby is exquisite and smart, and PHP is concise and simple · Perhaps elegance comes from the emphasis on details and specifications. · After the combination of ROR and Ruby, as a ghost cat, Java and. Net elephan

Comparison of Perl, PHP, Python, Java, and Ruby]

From the content of this article, the writing time is relatively early, and some terms I think are not accurate, a bit colloquial, but it means. Q: What are the characteristics of Perl, Python, Ruby, and PHP? Why is dynamic language a lightweight solution? Why is LAMP popular? Why is RubyonRails popular? Development Trend of Programming Language From the content of this article, the writing time is relatively early, and some terms I think are not accu

Comparison of perl, php, python, java and ruby

The development trend of the language must be the combination of dynamic and static data, the combination of strong and soft Perl, the concise and obscure Python, the elegant and clear Ruby, the concise and simple PHP, or the elegance of PHP, the preview of the details and specifications. ◆ The language development trend must be dynamic and dynamic combination and flexible. ◆ Perl is concise and obscure, Python is elegant and clear,

JavaScript is becoming the Ruby killer?

I love Ruby and participate in the Ruby community where I am located. I am a member of the programming society RubyFools. Sometimes I give some lectures on Ruby's greatness and Ruby projects I have worked on in my spare time. I feel very free to use Ruby for programming. I love the vitality of the

Ten steps to get Ruby on Rails running on Windows with IIS FastCGI

Since The original tech preview release of FastCGI last year, we ' ve been seeing a lot of requests for getting Ruby on Rail s running with our FastCGI. Theoretically, since the FastCGI component uses a standard protocol to support fastcgi-enabled applications, this shouldnt Be a issue-but, in practice, this is very far from reality. After factoring in Setup problems, configuration, and variations on runtime Behavior/protocol deviations, every single

Basic Ruby tutorial,

Basic Ruby tutorial, 1. Basic Ruby knowledge 1. Ruby Ruby is a scripting language Ruby is an object-oriented language Ruby is a cross-platform language Ruby is open source software. 2.

) Understanding Ruby Symbol

What is Symbol? Ruby is a powerful object-oriented scripting language (the ruby version used in this article is 1.8.6). In Ruby, symbol represents a "name", such as a string name and an identifier name. To create a symbol object, add a colon Before the name or string: Create a symbol object :foo:test :”abc”:"I am a boy” You may as

Several solutions to improve Ruby on Rails performance: rubyrails

Several solutions to improve Ruby on Rails performance: rubyrails Introduction The Ruby On Rails framework has received wide attention since it was proposed. Under the guidance of ideas such as "do not repeat yourself" and "convention is better than configuration, rails brings high development efficiency to Web developers. The flexibility of ActiveRecord allows you to achieve easy-to-use persistence without

A basic tutorial on object-oriented programming for Ruby _ruby topics

Ruby is a pure object-oriented language, and everything in Ruby comes in the form of objects. Every value in Ruby is an object, even the most primitive thing: strings, numbers, and even true and false are objects. The class itself is also an object and is an instance of class. This chapter will show you all the key features associated with

Build a Ruby on Rails native development environment with Ubuntu 12.04

Reprint, original link http://linux.cn/portal.php?mod=viewaid=170 using Ubuntu to build a Ruby on Rails Local development environment Want to develop a Ruby on Rails app? Although there are already some (beginner) Ruby on Rails tutorials, there seems to be some uncertainty about how to build a clean and updated local development environment.This tuto

Creating a ruby weblog in 10 minutes

Contributed by Brian Leonard, maintained by Gail ChappellDecember 2007[Revision number: V6.0-6] In this tutorial, you use the ruby support in the netbeans ide To create and run a simple web application. the example shows how to create a ruby web log. you follow the basic workflow of creating the model, adding a controller, and creating a view. Contents - Tutorial req

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