install ruby

the current working environment. After that, you can switch back to the working gemset. Most ides also support RVM. You can automatically identify the Ruby version and GemSet managed by RVM to switch the Ruby parsing environment. Build a Ruby on Rails environment on CentOS 5.9 Configure Ruby on Rails in CentOS and dep

Ruby learning plan-(0) preface, ruby Preface Preface Currently, C, C ++, Java, Object-C, and Swift programming languages have been used. The most familiar language is oc. After all, it depends on him for dinner. It is only a beginner's path for other languages. Because he has been engaged in iPhone app development, recently, I wanted to develop a project by myself, but there was no backend, so I was so

Share with us today the basic Ruby Tutorial (http://www.maiziedu.com/course/ruby-px/), which focuses on Ruby Source and Ruby features, here's a look at Ruby 's introduction:Ruby is a purely object-oriented programming language. It was created in 1993 year by as of Japan (まつ

Further dive into the class and object concepts in Ruby and the concept of ruby objects Ruby is a pure object-oriented language, and all projects seem to need Ruby as an object. Every value in Ruby is an object, even the most primitive: String, number or even true or false.

than configured. ”Ubuntu, however, is a "Debian Linux derivative release that focuses on usability." "It's the most popular Linux distribution of all these years. Even better, Ruby on Rails and Ubuntu are open source, which means they're completely free!BrieflyIn this tutorial, we use the Ruby Version Manager (RVM) script to install

How to learn Ruby? What do you need to know before you learn Ruby? This is a lot of people want to learn the voice of Ruby friends, I do not give a specific answer, the following to tell you about a predecessor learning Ruby (http://www.maiziedu.com/course/ruby/) learning pr

Detailed explanation of the iterator IN Ruby and the Ruby Generator D guago recently wanted to build a website. In addition, he had long had the idea of learning a dynamic language. Among the programming languages that meet two conditions, Ruby and Python are the most appropriate. Now Ruby on Rails is booming! Therefor

Understand Ruby scopes and Ruby scopes What is scope? When talking about the scope, you should immediately thinkVariableAndVisibilityThese two words,VariableAndVisibilityIt is the main content of the scope. Yes, the scope is about where the code variables are visible. After you fully understand the scope, I will give you a piece of code, you can easily know what variables are visible at this time, and most

The concept of class objects in Ruby and the concept of ruby objects 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 instance called a bicycle. Example of any vehicle. It includes wheel, horsepower, fuel or gas tank capacity. Data members of vehicles with these features. These f

and access the methods and variables in your Rail application. This tutorial explains how to configure and use RJB in a Rails application. Goal In this tutorial, you will learn how to: Download, compile, and install RJB Set up RJB to access the shared Java library Load Legacy Java code into a Rails application and access This tutorial does not delve into the features of Rails. One of the advantag

Ruby basic syntax getting started tutorial, ruby basic syntax tutorial Let's write a simple Ruby program. All Ruby file extensions are. rb. Therefore, put the following source code in the test. rb file.Instance #!/usr/bin/ruby -wputs "Hello,

Most Ruby programs, their design, logic, and action, are all centered around objects. The main task of writing a Ruby program is to create objects and then give them the ability to perform actions. Ruby is an OOP language, an object-oriented language in which you perform calculations, data processing, input, and output by creating objects and then letting the ob

Installation will not say, the official website has, but today released ruby2.3, so updateEnter the. Rbenv directory, perform a git pull update, but update rbenv, execute rbenv install-l and do not have the latest 2.3.0 release version.Then I looked at the git repository for the Ruby-build plugin, with 2.3 code. Suspect this also to be updated, so.Go to the. Rbenv/plugins/

.com "," Sex ":" Male "}, { ' Name ': ' site120_2 ', ' email ': ' site1 20@163.com_2 ', ' sex ': ' Male _2 '} '} ' puts peoples[' peoples '][1][' name ' #输出site120_2 Ruby on RailsRails has built-in AJAX support through the RJS, and perhaps not many opportunities to use JSON, but as a convenient format for data interchange or a value note, the following Use the JSON plugin here, install the command

Tutorial on processing file input and output in Ruby, and tutorial on ruby processing output Ruby provides a complete set of I/O-related methods, which are implemented in the Kernel module. All I/O methods are derived from IO classes. Class IO provides all basic methods, such as read, write, gets, puts, readline, getc, and printf. This section describes all the b

In-depth analysis of the use of the command mode in Ruby Design Mode Programming, ruby Design Mode The command mode is the design mode with a high usage of the object behavior type, alias: Action, Transaction) Intent: encapsulate a request as an object so that you can parameterize different requests, queue requests or record request logs, and support cancelable operationsThe so-called "different requests" a

Example parsing: Implementation of observer mode in Ruby design mode development, and ruby Design Mode In general, the observer mode should be defined as follows: building a clean interface between the source of news that some object has changed and the consumers of that news. The observer mode establishes a clean interface between the producer and consumer of the message, so that the coupling between the p

Concurrent concurrency and global lock details in ruby, and ruby parallel global explanation Preface This article mainly introduces you to ruby concurrency and global locks. We will share the content for your reference and learning. I will not talk much about it below. Let's take a look at the details. Concurrency and Parallelism During development, we often come

hope that the day will soon end when I want to gain some technical advantages by choosing other programming languages. However, due to the influence of several famous people, I decided to try Ruby. Well, if "I have reached the top of the hill", this article is my research report on Ruby. 　　Ii. Install Ruby

://railscasts.com/(@ Masaki) Second: study books recommended: 1.rails programming to see the first book "Agile Web Development with Rails second Edition" The second book to read in the 2.rails step is ruby for rails 3.rails Combat to see the third book, "Rails Recipes" 4.Programming Ruby Chinese version (2nd edition) 5. Ruby Cookbook (Cookbooks (O ' Reilly)