Ruby

First, max_by,min_by the minimum value of the maximum value in the array according to the condition1 " This is a string " 2 arr = Str.split ("")3#"a"4# "string"Second, find finds the first element of a match1 " This is a string " 2 arr = Str.split (

Any method defined by a class in Ruby can accept a process object (Proc) as an additional parameter, in a method, you only need to use the yield expression to call this process object. During the call, the parameter of the object is specified by the

Ruby is indeed very popular, and the network is so popular that I can't help but be impulsive. I found some information to study it and shared it with you. Build a Ruby on Rails environment in Windows Install Ruby:Download the http://www.ruby-lang.

After Ubuntu is installed, it is time to configure the Ruby on Rails 2.3.5 development environment. First, ensure that your current Ubuntu can be connected to the Internet. Ruby1.8.7 installation:Run the following command on the terminal:Sudo

Global variables start with $.ProgramBefore initialization, the global variable has a special value nil. Special variables starting with $ and with a single character are listed here. for example, $ contains the process ID of the Ruby interpreter,

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

String processing in ruby is flexible. "ABC" [0] returns 97 as"ABC" [1] 98"ABC" [2] 99"ABC" [3] Nil"ABC" [-1] 99 forward number"ABC" [-2] 98"ABC" [-3] 97"ABC" [-4] Nil "ABC" * 2 returns "abcabc" supporting Multiplication "ABC" + "def"

Disclaimer: every time we 've ve run a piece about benchmarking or performance numbers on Ruby inside, a retraction or significant correction has come out shortly thereafter. benchmarking is hard, uugly, and quite often wrong or biased. it is not

Def say_goodnight (name) Result = "Good night. "+ name return resultenddef say_goodmorning (name) Result =" Good morning. # {name} "Return resultenddef say_goodafternoon (name) Result =" good afternoon. # {name} "endputs say_goodnight (" Jake ")

####################### Class variables ############### ####### class cloud @ COUNT = 0 def initialize (user, password, ip) @ user = user @ Password = password @ IP = IP end def createvm @ IP = IP @ count + = 1 endend ############## ###########

I feel that I will soon forget what I learned and will not leave anything. I read "seven weeks and seven languages" this time and record what I think is useful for future reference, this should be the beginning of the record. Ruby is an

I used to make this mistake when using perforce: I wrote a new file and forgot to add it to the perforce depot to submit it in a rush. Other people could not sync and compile it, affecting the team progress. A ruby script is written to check which

Reprinted please indicate the source: http://blog.csdn.net/guolin_blog/article/details/8986299 This is a copy version of Java Design Pattern dialysis, which is specially provided for Ruby lovers. If you are not familiar with Ruby syntax, please

In Ruby, the following code obtains the absolute path of the current Script: eiztz5 [0 51testing Software Testing Network + r1oc, tlt Require 'pathname' puts pathname. New (_ file _). realpath N: ^ qsxd? /M0 51testing software testing network ugfb +

Five months ago, arvato systems found me saying: I need to lead an important project. You can use my favorite technologies. The team members (at least part) can be selected by me. By the way, they also told me that the results of this project

1. Install the compiling environment gcc Install GCC online using Yum install 2. Install the ruby Development EnvironmentFirst download Linux Installation File: ruby-1.8.6-p111.tar.gzRun Tar-zxvf ruby-1.8.6-p111.tar.gz CD ruby-1.8.6-p111

To use Ruby to Operate Excel files, you must first include the following statements in the script:Require 'win32ole' After win32ole is included, you can interact with the Excel API in Windows to read and write Excel files. Open the Excel file and

1. Return the length of the stringStr. Length => integer 2. Determine whether the string contains another stringStr. Include? Other_str => true or false "Hello". Include? "Lo" # => true"Hello". Include? "Ol" # => false"Hello". Include? ? H #=> true 3

Ruby learning Note 2 helps generate code for Vim to add code headers, rubyvim The script language is too strong. My goal is to add my default code header function to Vim. /******************************************************************************

The explanation is good. It should be clear a lot.Ruby symbol detailsCauseRecently I have been studying ruby on rails. It is indeed an excellent database development framework. However, a large number of statements similar to the following are found