sinatra ruby

What is the ruby language? 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.

Ruby processes strings like numbers. We enclose them with single quotation marks ('...') or double quotation marks. Ruby> "ABC""ABC"Ruby> 'abc'"ABC" Single quotation marks and double quotation marks have different functions in some cases. A string enclosed by double quotation marks allows a character to be led out by a front slash, and can be embedded with

The concept of class objects in Ruby This article mainly introduces the concept of class objects in Ruby, which is the basic knowledge of Ruby learning. For more information, see Object-oriented Programs involve classes and objects. A class is a blueprint created from an individual object. In object-oriented terms, we say that James's bicycle is an object instan

Detailed descriptions of hook methods in Ruby This article mainly introduces the detailed explanation of the hook method in Ruby. This article explains what is the hook method, extended, extended, prepended, inherited, and so on in included, Devise, for more information, see Ruby's philosophy is based on a basic element, that is, to make programmers happy. Ruby p

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

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

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,

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

Contributed by Brian Leonard, maintained by Gail ChappellDecember 2007 [Revision Number:v6.0-6] In this tutorial, 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 of the model, adding a controller, and creating a view. Contents - Tutori

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, 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.

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 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

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

It is often seen that ruby and python are compared together. Some people say that ruby is more like a combination of perl and python, so ruby is more like python or perl? It is often seen that ruby and python are compared together. Some people say that ruby is more like a co

Ruby is an open-source dynamic programming language. It has excellent syntax and can be used to build scalable Web applications. Rubygems can greatly improve the development efficiency of Ruby developers. There are several methods to install Ruby on Ubuntu, each of which can be completed in just a few steps. Method 1: Use apt-get to install

　　 Help the Home (www.Bkjia.com) NewsThis article is not a big battle between Ruby and PHP. It's just that the problem with Ruby in this article is that the lack of library support, the ease of expansion, the ease of crashing, and so on, are all things that the Web programming language needs to improve. This article is from Killerphp.com's webmaster Stefan Mischook, and was pushed to the famous PHP develo

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Preview ◆ The language development trend 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. ◆ (ROR) When combined with Ruby, it immediately sets off the figure of Java and. Net elephants as a ghost cat. Question ◆

Using Rexml in tree modeThe purpose of Rexml is just enough. To the greatest extent, it can accomplish the task well. In fact, Rexml supports two different styles of XML processing-"tree" and "stream". The first style is a simpler version of what DOM tries to do; the second style is a simpler version of what SAX is trying to do. Let's look at the tree style first. Let's say we want to extract the same address book document from the previous example. The following example comes from the modified