ruby under microscope

Before you start About this tutorial Ruby on Rails (rails) is a full-stack WEB application framework written in Ruby, and Ruby is a rich, free, extensible, portable, object-oriented scripting language. Rails is very popular among WEB application developers. With it, you can quickly and efficiently develop Web applications and deploy them to any web con

! Preview· the development trend of language must be the combination of static and dynamic, flexible and economic· Perl is obscure, Python is elegant and clear, Ruby is smart, and PHP is simple· Perhaps elegance comes from the attention to detail and norms.· RoR with Ruby, it's like a Nao with a cat, and instantly brings out Java and the. NET Elephant Figure? Questions What are the characterist

Like Perl and Python, Ruby has excellent functionality and is a powerful text-processing language. This article gives a brief introduction to Ruby's text-processing capabilities and how to use Ruby to effectively process text data in different formats, whether it is CSV or XML data. Ruby string Common Abbreviations CSV: comma-separated values

Parse Ruby variables in detail This article describes how to parse the variables in Ruby in detail. It is one of the most basic knowledge in Ruby learning. For more information, see The location where the variable holds the data of the program to be used. Ruby supports five types of variables. In the previous section,

Ruby handles strings like numbers. We enclose them in single quotes (' ... ') or double quotes ("..."). Ruby> "ABC" "ABC" Ruby> ' abc ' "ABC" Single and double quotes have different effects in some cases. A string enclosed in double quotes allows characters to be drawn by a forward slash, and can be inline with #{} expressions. Strings that are enclosed in s

Variable holds the location where the data for the program to be used is stored. There are five types of variables supported by Ruby. A brief description and these variables have been experienced in the previous chapters. These five types of variables are described in this chapter.Global Variables for Ruby: Global variables begin with $. The value of the uninitialized global variable is zero and a warning

Document directory Add a MySQL database Add a java db (Derby) Database Download Ruby support If you have not installed the netbeans 6.0 IDE, open the netbeans ide 6.0 download page and download the IDE versions that contain Ruby support. If you already have netbeans ide 6.0, but there is no ruby support in netbeans ide 6.0, follow these steps to add

This article details how to configure Ruby on Rails development environment in Windows, and hopefully it will help ror beginners. First, download and install Ruby The best choice to install Ruby under Windows is Rubyinstaller (one-click installation package).Download Address: http://rubyforge.org/frs/?group_id=167.We are here to download the newer Rubyinstaller

Ruby provides a complete set of implementation methods in the I/O-related kernel modules. All I/O methods come from the IO class. Class IO provides all the basic methods, such as read, write, gets, puts, ReadLine, getc, and printf. This chapter will cover all the basic I/O features that are available for use in Ruby. For more features, refer to Ruby's IO class.puts statement: In the previous section, you

Ruby Installation-LinuxThe following is a list of steps to install Ruby on a Linux machine.Note: Before installing, make sure you have root permissions.SOURCE InstallationDownload the latest version of the Ruby zip file. Please click here to download.After you download Ruby, unzip to the newly created directory:

This section will show you how to access a database using Ruby. The Ruby DBI module provides a database-independent interface for Ruby scripts similar to the Perl DBI module. DBI, the Database independent interface, represents a Ruby-independent interface to databases. DBI provides an abstraction layer between

Ruby is an interpretive, object-oriented, dynamic type of language. The strategy adopted by Ruby is to find a balance between flexibility and run-time security. With the advent of the rails framework, Ruby also blockbuster around 2006 and also guides people back to the fun of programming. Although Ruby is not as effici

Use C ++ to compile Ruby program extension tutorials. One of Ruby's coolest features is to extend it using the application programming interface (API) defined in C/C ++. Ruby provides the C header file ruby. h, which is accompanied by many features that can be used to create Ruby classes, modules, and more. In addition

Ruby on Rails is a relatively new framework for WEB applications, and its goal is to provide an easy path for application development. In short, it makes life, or at least Web development, easier. In fact, proponents of the framework claim that the productivity of Ruby on Rails developers is up to 10 times times the use of the traditional Java EE framework. While this sentence creates considerable controver

Ruby programming language is developed by the Japanese pine line, is a simple and fast object-oriented programming language, today mainly talk about the ruby framework--ruby on Rails (http://www.maiziedu.com/course/ruby/), Maybe some friends don't like Ruby, but as a languag

This article mainly introduces the concept of class objects in Ruby, is the basic knowledge of Ruby learning, need friends can refer to the Object-oriented programs involve classes and objects. A class is a blueprint that is created from an individual object. In object-oriented terms, we say that Xiaoming's bike is an object instance called a bicycle class. Examples of any vehicle. It

Ruby languages are often praised for their flexibility. As Dick Sites says, you can "program for programming." Ruby on Rails extends the core Ruby language, but it is Ruby itself that makes this extension possible. Ruby on Rails uses the language's flexibility so that it is

Ruby is filled with a series of hidden variables, and we can get some interesting information from these predefined global variables. Global process variables $$ represents the currently running Ruby process. Copy Code code as follows: >> $$ => 17170 We can kill ourselves from the current process. Copy Code code as follows: >> ' kill-9 #{$$} ' [1] 17170 killed IRB $

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

1. Writing should be standardized, rather than creating different styles like C.Java is obviously a language that is easy to unify the programming style, while Ruby is obviously a language that is difficult to unify the programming style. Someone in the javaeye forum once said: Reference The Java language, the master and the Low-hand code are similar, while Ruby is different. The syntax of the Java program