ruby splat

I've been working on Ruby for a while and have recently had some leisure events, learning about Ruby and preparing for future Ruby on Rails development.Ruby was founded in 1993 by as of Japan (まつもとゆきひろ/yukihiro Matsumoto). In contrast to chatty's development language such as Java, Ruby can be said to be small and beaut

[Ruby on Rails Learning 1] ubuntu14.04 configure rvm and ruby, ubuntu14.04rvm To install ruby, you must first install rvm. Rvm is Ruby Version Manager, a command line tool developed by Wayne E. Seguin. Rvm allows you to easily install and manage ruby productivity environmen

Ruby image installation, ruby Image Because of the domestic network, the intermittent connection of resource files stored on Amazon S3 by rubygems.org fails. So you willgem install rackOrbundle installHalf a day without response.gem install rails -VTo view the execution process.This is a complete rubygems.org image. You can use this image to replace the official version. The synchronization frequency is cu

The example explains how Ruby uses the decorator mode in the design mode, and the ruby design mode. OverviewIf you are engaged in object-oriented development, adding behavior to a class or object and using inheritance mechanisms, this is a basic feature of all object-oriented languages. If an existing class lacks some methods, or you need to add more functions (CHARM) to the method ), you may just inherit t

Solve ruby Installation Problems: redis requires Ruby version amp, rubyredis I. Problem Description Today, we set up a redis cluster and encountered a problem when installing ruby and redis interface programs: redis requires Ruby version> = 2.2.2., as shown below: [root@localhost ~]# gem install redis-4.0.0.gem ERROR

Introduction to Ruby operators and statement priority, ruby operator priority Ruby is a language with strong expressive power. It is proud of its rich operators and syntactic sugar. Although Ruby has always regarded the principle of least surprise as one of its philosophies, but it is often surprising that it is diffic

Object array sorting in Ruby and Ruby object array sorting Sorting of Ruby object arrays The author has just come into contact with Ruby, because he previously thought that the script language syntax is not standardized and he is somewhat biased against the script language. For example, he does not need to learn PYTHON

Ruby uses the simple factory mode and factory method mode in the design mode, and the ruby Design Mode I have read the ruby design pattern before, But I gradually forget it. Now I bought a big talk design pattern, which doesn't look so boring. By the way, I implemented the code in ruby. Simple factory mode: #-*-Encodin

It's pretty rare I recommend new blogs to follow on Ruby inside. Not because I don't like them-I link to their posts all the time!-But because it's hard to tell if a new blog is going to keep going and be worth your while. Well, the Ruby community has a new blog in its midst that's proving to be a must-read-Ruby Best Practices.It's a must-subscribe (RSS feed) fo

What is Ruby FPDF? Ruby FPDF is a Ruby portOlivier Plathey's excellent PDF generator,FPDF.FPDF is written in PHP, and as such can only be used from PHP scripts.Ruby FPDF, as the name suggests, is written in Ruby and can be usedFrom Ruby scripts.

Array usage in Ruby, ruby array usage Ruby arrays are ordered. What about any object ?? The set of integer indexes. The elements in each array are associated and an index is mentioned. Array subscript starts from 0, such as C or Java. Negative index assumes that the end of the array --- that is,-1 indicates the array index of the last element,-2 is the next eleme

Some basic operations on Ruby processing time, And ruby processing basic operations Get the current date and time: The following is a simple example to get the current date and time: #!/usr/bin/ruby -wtime1 = Time.newputs "Current Time : " + time1.inspect# Time.now is a synonym:time2 = Time.nowputs "Current Time : " + time2.inspect This produces the following res

is not a professional web crawler crawling, just before a very bad site to help people brush the ticket started to learn the web crawler tools.The initial time is to use the Python urllib2, get the page when the text processing, later in the forum to see the Beautifulsoap this level of artifact, Python processing this is really convenient, but later I met the Ruby and rails, from the faithless, Even read the metaprogramming