Ruby

Metaprogramming is a ruby feature that can dynamically modify the language structure, such as the class structure, module structure, and instance variable information. You can evenProgramAdd and run the newCodeYou do not need to restart your

The scripts written in Ruby run faster, and you decided to use ruby. Compared with my e-commerce website, I have the opportunity to use it: Get all URLs on a page. Save the following script as URLScan. RB. Usage: run the CMD command to enter the

 # Part One Afile = file. New ("C: \ 1.txt"," W ") Afile. Puts "The 1" Afile. Puts "The 2" Afile. Close # Part Two Afile = file. New ("C: \ 2.txt"," W ") Puts "The 1" Puts "The 2" Afile. Close I'm bored and have a look at how Ruby reads and

Yesterday I asked the first question in stackoverflow and was despised... This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form "... The problem is as follows: I have a CSV

1. How to solve the problem that garbled characters are displayed in the scite editor in Chinese. use NotePad to open the RB script, save it as, select the encoding mode as UTF-8, and save it. Open the script with scite. How can I make the scite

Ruby Study Notes (1) Abstract: I found a good place to learn Ruby. I try to spend some time learning every day. Read the full text Ruby Study Notes (2) Abstract: This lesson contains a lot of content. Read the full text. Ruby Study Notes (3)

1. Ruby-China website source code package: https://github.com/huacnlee/ruby-china $ cd ~/workspace$ git clone https://github.com/huacnlee/ruby-china.git 2. If you want to worry about it, do not try to install it in windows. Last night, it took 30

Today I learned about the closure of Ruby. I mainly read the book "metapromgramming ruby: Http://book.douban.com/subject/4086938/ In chapter 3, the closed boss at the end of the closure is a question: write your first domain-specific language. event

Recently, I am reading the ruby hacking Guide (the ruby source code is completely explained, and the ruby hacker has been fully explained. I saw a team translating on the Internet. Unfortunately, I didn't find any good translation results, so I had

I have been reading agile web development with rails over the past few days. Before reading a book, I thought of the following questions, which need to be found in the book: How to input validate, such as a required, number, date, range, and

Preface Today, when giving a lecture, Mr. Jiang talked about the development concept of Ruby on Rails, that is, happy programming. It is a pleasure to write code. In the world of study, I don't feel how happy I am. I just don't have to go to work.

Use before_invocation to verify the call permission API Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Class blogapi Api_method: hello_world, : Expects => [{"password" = >:string}, {"user" =

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 #! /Usr/bin/ENV Ruby 2 3 class megagreeter 4 attr_accessor: names // sets attributes. Two methods (name, name =) are automatically generated to

1 Check whether the entered content is empty. In Models Validates_presence_of: title,: Description,: image_url 2 Verify that the entered content is Numeric

How to interview Ruby/rails Daniel by YuanYi | published: July 28,200 8 The Internet has no threshold for reporters. Anyone who wants to become a network reporter, especially a network technology reporter, even does not need to meet the interviewer.

# Class describ ------ rdoc rules# = Headers# This is header content#== Sub Header# This is sub header content#=== Sub Header# This is sub HeaderClass animalAttr_accessor: name # ------------- ① # This is the comment for the 'new' method! Def

$res = "__"def lamb(&lamb)3.times do puts $res=lamb.call end puts "-------at the end of lamb() : #{$res}"enddef lamb_test lamb { return puts " return in lamb() " } puts "--------at the lamb_test() end"enddef bl3.times do puts $res=

I have no intention of initiating a language dispute. I just want to talk about my own ideas. I have also studied Ruby. I feel that it is too complicated, with too many syntaxes, too much sugar, and too many abbreviations. I haven't played Ruby for

Running environment: Ruby 1.8.6 Rails 1.2.5 Gem 1.0.1 The gmail server is used here. Because actionMailer in rails does not support TLS (SSL) connections, it is the only transmission method on the Gmail SMTP server. There is a plug-in provided for

Test cases are similar to the Menu above, a total of 9 First look at the Element Definition (yaml ): # Channel switching-channel_0_link: div (: class, 'navmenubg '). li (: id, 'num _ 2 '). link (: href, 'HTTP: // beijing.xxxx.com/xxxshi')