sinatra ruby

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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,

tutorial on installing Ruby interpreter on operating system _ruby topics

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:

A detailed tutorial on connecting to a database in a Ruby program _ruby topics

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

Nginx+unicorn Deploying a ruby Web Environment

recently took over a Ruby Web project, and since it was not previously exposed to Ruby and related web development, and the document was missing, it was a bit of a detour to deploy the project .。Finally, we have successfully deployed the project by referring to several Ruby on rails development environment deployment and learning the relationship between Gem/bund

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 '''

Ruby on rails different development experiences

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 learning methods, methods, books

Recently, to learn new projects, you need to learn new languages to complete tasks. This language is Ruby that has been heard but never learned and practiced, the previous visual image is often used in comparison with python. Of course, it is a little later than python. It draws on some things of Python and implements some features not available in Python. There is no direct comparability, but I still think python is easy to use. [Python's purpose is:

Anthropomorphic class discussion of Perl/PHP/Python/Java/Ruby

Compared with Java and. NET platforms, dynamic languages are lightweight, flexible, and efficient in development, but there are still some gaps in integration cohesion. Therefore, they are usually used as lightweight solutions. LAMP is a network development platform consisting of Linux, Apache, MySQL, and scripting languages including PHP, Perl, Python, and Ruby, it features openness, flexibility, rapid development, convenient deployment, high configu

Build a Ruby on Rails environment on Windows

Build a Ruby on Rails environment on Kokko's Windows Platform Use Ruby on Rails in Windows XP 1. Install Ruby, Ruby on in win environmentE-click installer package, which is Http://www.ruby-lang.org/en/downloads, After the installation, click "Install", click "Next", "I agree", and select the installation path (my insta

Ruby 1.9 does not kill Python

Songben launched Ruby 1.9 on Christmas Day. According to Ruby's convention, if the first digit after the decimal point is a singular number, it indicates that this is an experimental version and is not recommended for product environments. The so-called "product environment" is basically Ruby on Rails for the current Ruby. According to the current reflection of t

Ruby object-oriented Programming Detailed _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

Tutorial on using Ruby to implement simple things-driven Web applications _ruby topics

record all of the scripts again. So is there any way to overcome the above problems and make the work easier? The answer is YES! For example, an online electronic bookstore, for users to buy the book scene, we can use the following script for integration testing: Login ' test@test.com ', ' pass4you '/LoginList_books//List of booksAdd_to_shop_cart ' Who says elephants can't dance '//Add to the cart the book who says elephants can't dance Readers can see, "Login", "List_books", "add_to_shop_c

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

On the concept of class object in Ruby

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

Several programming tips to speed Ruby on Rails _ruby topics

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

Install Ruby, Rails runtime environment, and rubyrails quickly and correctly

Install Ruby, Rails runtime environment, and rubyrails quickly and correctly How to quickly and correctly install Ruby and Rails runtime Environments For new entry-level developers, installing Ruby, Ruby Gems, and Rails running environments may be a problem. This section describes how to quickly install the

Instructions on how to use the XML data processing database REXML in Ruby, rubyrexml

Instructions on how to use the XML data processing database REXML in Ruby, rubyrexml Use REXML as a treeThe purpose of REXML is to be enough. To the maximum extent, it can complete tasks well. In fact, REXML supports two different styles of XML Processing-"Tree" and "stream ". The first style is the simpler version used by DOM; the second style is the simpler version used by SAX. Let's study the tree style first. Suppose we want to extract the same ad

Several programming skills for accelerating Ruby on Rails, rubyrails

Several programming skills for accelerating Ruby on Rails, rubyrails Ruby is often praised for its flexibility. As Dick Sites says, you can "Program for programming ". Ruby on Rails extends the core Ruby language, but Ruby itself makes this extension possible.

Tutorial on installing the Ruby interpreter on the operating system.

Tutorial on installing the Ruby interpreter on the operating system. Ruby installation-LinuxThe steps for installing Ruby on a Linux machine are listed below.Note: before installation, make sure that you have the root permission.Source code InstallationDownload the latest Ruby compressed file. Click here to download.Af

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