instance method Module#prepend (Ruby 2.0.0)
prepend(*modules) -> self[permalink][rdoc] 指定ã—ãŸãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ self ã®ç¶™æ‰¿ãƒã‚§ã‚¤ãƒ³ã®å…ˆé ã«ã€Œè¿½åŠ ã™ã‚‹ã€ã“ã¨ã§ self ã®å®šæ•°ã€ãƒ¡ã‚½ãƒƒãƒ‰ã€ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«å¤‰æ•°ã‚’「上書ãã€ã—ã¾ã™ã€‚ 継承ãƒã‚§ã‚¤ãƒ³ä¸Šã§ã€self ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«/クラスよりも「手å‰ã€ã« è¿½åŠ ã•ã‚Œã‚‹ãŸã‚ã€çµæžœã¨ã—㦠self ã§å®šç¾©ã•ã‚ŒãŸãƒ¡ã‚½ãƒƒãƒ‰ã¯ override ã•ã‚Œã¾ã™ã€‚ modules ã§æŒ‡å®šã—ãŸãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã¯å¾Œã‚ã‹ã‚‰é †ã«å‡¦ç†ã•ã‚Œã‚‹ãŸã‚〠modules ã®å…ˆé ãŒæœ€ã‚‚優先ã•ã‚Œã¾ã™ã€‚ ã¾ãŸã€ç¶™æ‰¿ã«ã‚ˆã£ã¦ã“ã®ã€Œä¸Šæ›¸ãã€ã‚’処ç†ã™ã‚‹ãŸã‚ã€prependã®å¼•æ•°ã¨ã—㦠渡ã—ãŸãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã§superを呼ã¶ã“ã¨ã§ self ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«/クラスã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’呼ã³å‡ºã™ã“ã¨ãŒã§ãã¾ã™ã€‚ 実際ã®å‡¦ç†ã¯ modules ã®å„è¦ç´ ã® prepend_features を後ã‚ã‹ã‚‰é †ã«å‘¼ã³ã ã™
AppsInTheOpen
I was watching a video by Aaron Patterson, where he highlighted a few Ruby performance tuning tools. I thought it would be useful to write a quick post to gather them all together in the same place. Benchmark The classic tool for testing if one block of code is faster than the other in Ruby is the Benchmark module. It comes built in, and is pretty simple to use: require 'benchmark' h = { foo: 1, b
How Ruby Uses Memory
Subscribe to my Newsletter 😻 🤠Join thousands of developers who get new code, writing, and programming links from me delivered to their inboxes. Keep Reading 🚀 Don't McBlock me “That cannot be done.†Is rarely true, but it’s a phrase I’ve heard more and more from technical people without offering any rationale or further explanation. This tendency to use absolute language when making blocking s
Using Arel to Compose SQL Queries
Rails gives us a great DSL for constructing most queries. With its knowledge of the relationships between our tables, it’s able to construct join clauses with nothing more than the name of a table. It even aliases your tables automatically! The method we most often reach for when querying the database is the where method. 80% of the time, your query will only be checking equality, which is what wh
RailRoady :: Ruby Model & Controller Class Diagram Generator
Alternate Usage If you don't like the way the rake tasks generate files, you can run the "railroady" command-line tool to manually generate DOT diagram source code. See the README for details. Features Trivial to integrate Simple to install and run. Dynamic Reverse engineer your existing source code. No more stupid Vizio diagrams that are perpetually outdated. Vector Graphics Rake tasks generate s
Debugging memory leaks in Ruby
Sam Saffron Programming, Technology and the Art of Hacking At some point in the life of every Rails developer you are bound to hit a memory leak. It may be tiny amount of constant memory growth, or a spurt of growth that hits you on the job queue when certain jobs run. Sadly, most Ruby devs out there simply employ monit , inspeqtor or unicorn worker killers. This allows you to move along and do mo
Efficiency with Sublime Text and Ruby » Thunderbolt Labs
What does a developer do when he likes the usability of a graphical editor like Textmate, but wants the configurability of Vim or Emacs? The answer is Sublime Text. I used to write my programs in Textmate. After seeing Sublime Text in action at a Ruby meet-up I downloaded it. Sublime Text is fast, developer sleek, and modifiable. I write Ruby everyday in Sublime Text and have learned ways to work
What do you call the -> operator in Ruby?
Stack Overflow for Teams is now called Stack Internal. Bring the best of human thought and AI automation together at your work. Try for free Learn more
Gem review: Octopus, database sharding for ActiveRecord
tags: Databases, Ruby on Rails, Scaling date: 2011-02-28 20:58:51.000000000Z ##Information The gem: Octopus Repo: https://github.com/tchandy/octopus Creator and maintainer: tchandy Contributors: https://github.com/tchandy/octopus/contributors Seriously wtf is database sharding? Database sharding is a method of horizontal partitioning in a database or search engine. Each individual partition is ref
Ruby Inside: The Ruby Blog
In math, a unary operation is an operation with a single input. In Ruby, a unary operator is an operator which only takes a single ‘argument’ in the form of a receiver. For example, the – on -5 or ! on !true. In contrast, a binary operator, such as in 2 + 3, deals with two arguments. Here, 2 and 3 (which become one receiver and one argument in a method call to +). Ruby only has a handful of unary
Rubyã®File.expand_path('相対パス', __FILE__)ã®æ„味 - maeharinã®æ—¥è¨˜
Railsãªã©ã®Rubyライブラリã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’見ã¦ã„ã‚‹ã¨ã€ã‚ˆã File.expand_path('相対パス', __FILE__) ã¨ã„ã†ä¸€æ–‡ã‚’ç›®ã«ã™ã‚‹ã€‚ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ãŸã€‚ File.expand_pathã¨ã¯ riコマンドã§èª¿ã¹ã¦ã¿ã‚‹ $ ri File.expand_path (from ruby core) ------------------------------------------------------------------------------ File.expand_path(file_name [, dir_string] ) -> abs_file_name ------------------------------------------------------------------------------ Converts a pathname
Effective Ruby
A book from the Effective Software Development Series, written by Peter J. Jones. Practical advice for intermediate Ruby programmers, split into 48 actionable items. Kick bad habits from other languages and embrace the Ruby way of doing things. Expert guidance on Ruby internals such as the hidden inheritance hierarchy and the generational garbage collector in Ruby 2.1. Buy the book at InformIT.com
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
Home
GitHub - kpumuk/meta-tags: Search Engine Optimization (SEO) for Ruby on Rails applications.
GitHub - hothero/awesome-rails-gem: A collection of awesome Ruby Gems for Rails development.
https://dthompson.us/ruby-on-guix.html
Ruby プãƒã‚»ã‚¹ã‚’追ã„ã‹ã‘るツール(プãƒãƒ•ã‚¡ã‚¤ãƒ©ã¨ã‹)10é¸ - sonots:blog
Rubocop reports an error on multiline lambdas in scopes · Issue #1520 · rubocop/rubocop
Ruby, cron, UTF-8, and the locale environment variables
What does map(&:name) mean in Ruby?
{{#tags}}- {{label}}
{{/tags}}