Ruby

It was an intoxicating day. The conventions of element data programming, dynamic typing, and the combination of Ruby and rails are better than configurations (Convention over configuration), giving us faster development and cleaner code. has been

#设置奖励信息 def set_award_info (task_params,award_params) if task_params[:goods_i D].to_i = = sequel::model::table # update Sys_task_award_account award_params[:account].split (/;/). |params| Task_award = {} task_award[:account_id] = nil

1. Install RubyAfter the installation is successful, the input ruby-v will have version information2. Execute gem install rails installation RailsImplementation of the outdated wait, long time no response, after the internet to find out the resource

Let's say we don't know anything about it when we start looking at this method. Then our field test may deduce its effect." Bonnie ". ReverseWhat is the result of the operation?"Einnob"And then what do we know about this method? Yes, this is a

#Summary of usage of some percent sign (%) in Ruby #This article mainly introduces the usage summary of some percent sign (%) in Ruby, and the friend you need can refer to the followingWhat_frank_said ="hello!"#%Q #the string used to replace

RVM is the acronym for Ruby version Manager and is a command-line tool that allows you to easily install, manage, and use multiple versions of Ruby. Different rails projects use RVM to switch freely when using the same version of Ruby and

View Ruby version numberC:\users\cl>ruby-vRuby 2.2.2p95 (2015-04-13 revision 50295) [I386-MINGW32]Initializing the Ruby development tool configurationC:\demo\ruby>ruby DK.RB Init[INFO] found Rubyinstaller v2.2.2 at C:/ruby22Initialization complete!

1. Logical operators(1) Condition 1 | | Condition 2Condition 1 is false , only need to judge condition 2(2) Conditions 1 && conditions 2Condition 1 is true , the condition must be judged 22. Range operator(1) x.. Y from X to Y, including y(2) X...y

Main.rb#= Guess numbers#这是一个简单的猜数字游戏#== Gameplay#随机生成一个 The natural number of "1,100", it will prompt the sizeClass Guessnum def playGame wrongint =truec =0 Num= Rand - whileWrongint c+=1Puts"Please enter the number you guessed" 0~100

Installing the ruby Environmentinstalling Ruby through homebrew1. First, you need to install the homebrew on the systemAt the command line, execute the following command to complete the Homebrew installation (you will be prompted for the current

Empty? Whether the value of the object is emptyNil? Whether the object itself is emptyRB (Main):015:0>"'.Empty?=>trueIRB (main):016:0>"'.Empty?=>falseIRB (main):017:0>"".Empty?=>trueIRB (main):018:0>" ".Empty?=>falseIRB (main):019:0> Nil.Empty?

Four comparison functions in Ruby (equal ?, Eql ?, ==,==) For details, rubyeql There are four comparison methods in Ruby: equal ?, Eql ?, ==,==, And the performance in different classes is very different. It is also easy to get confused when using

The method for creating and parsing XML files in Ruby programs, rubyxml Use builder to create XML Builder installation method: gem install builder Require 'builder 'X = builder: XmlMarkup. new (: target => $ stdout,: indent => 1) # ": target => $

Explanation of the annotation usage and Chinese Encoding Problems in the Ruby language. Ruby AnnotationThe annotation hides a line, a part of a line, or several lines from the Ruby interpreter. You can use the following characters at the beginning

Naming style guide in Ruby programming and ruby programming style guide Name the identifier in English. # bad - identifier using non-ascii characters заплата = 1_000 # bad - identifier is a Bulgarian word, written with Latin letters (instead of

A Simple Method for Blocking spam messages in a blog. Spam is commonly known as Spam, which is the Spam advertisement that is everywhere in the message box. I believe most people have seen it. In the past, when using WordPress, the anti-Spam

The following is an example of how to use require IN Ruby: rubyrequire. Files in the same directory, such as/usr/local/ruby/foo. rb and/usr/local/ruby/bar. rb.If it is directly in foo. rb  require 'bar' Bar. rb is not found during execution.This is

Detailed description of the structure of the Combination Mode and Its Application in Ruby Design Mode Programming, ruby Design Mode Definition:It is also called the merging mode or partial-overall mode. It is mainly used to describe the relationship

The template method in the design mode is used in the Ruby application instance, and the ruby application instance. Instance 1Today, you have started programming as usual.The project manager tells you that you want to add a new function on the

The Style Guide for writing classes and modules in Ruby and the style guide for writing ruby Use a consistent structure in the class definition. class Person # extend and include go first extend SomeModule include AnotherModule # constants