If you're suffering from a huge de.yml or similiar file, cry no more. Rails lets you freely organize your...
Why string sorting sucks in vanilla Ruby Ruby's sort method doesn't work as expected with special characters (like...
Introspect the Ruby Heap by indexing, counting, locating references to and detaching (in order to release) objects.
When using the asset pipeline your assets (images, javascripts, stylesheets, fonts) live in folders inside app: app/assets/fonts app/assets/images...
A collection of snippets to generate random number under certain conditions, as: gaussian with a specified distribution triangular distribution
Geoffrey Grosenbach has created Gruff for easily plotting graphs. It is written in pure Ruby and integrates with Rails applications...
If you need a gem for a certain purpose, be sure to check this site. The rankings are determined by...
Consider the following HTML & CSS: ^ img { background-color: red; } div { border: 1px solid black; } This will leave a margin of...
If your project uses another version than your default Ruby, RubyMine will give you incorrect inspections, for example.\
When requests arrive at the application servers simultaneously, weird things can happen. Sometimes, this can also happen if a user...
Slides presenting ways to integrate the ideas of Aspect-Oriented Programming in Ruby. Outline Why Aspect-Oriented Programming?
If you get an error like this ... can’t find executable rails for rails-3.2.3 (Gem::Exception) ... one of several...
OCRA (One-Click Ruby Application) builds Windows executables from Ruby source code. The executable is a self-extracting, self-running...
Controller responses often include Javascript code that contains values from Ruby variables. E.g. you want to call a Javascript function...
How to get a backtrace from a running Ruby process: Ruby 2.6 # First, find out the PID of your Ruby...
TL;DR {} binds stronger than do … end (as always in Ruby, special characters bind stronger than words) Demo
This card needs to be updated for Rails 3+. Since there is no --debugger flag you need to run:
The following two hints are taken from Github's Ruby style guide: If your regular expression mentions a lot of...
This will give you the string that appears most often in an array: names = %w[ foo foo bar bar bar...
Capybara has a global option (Capybara.ignore_hidden_elements) that determines whether Capybara sees or ignores hidden elements.
After you configured your ODBC describe in Fix [RubyODBC]Cannot allocate SQLHENV when connecting to MSSQL 2005 with Ruby 1.8.7...
I followed this nice guide Connecting to MSSQL with Ruby on Ubuntu - lambie.org until I ran in the following errors...
Nice article to educate your non-geek girlfriend/boyfriend about the joys of programming.
Pour color on your Rails console with awesome_print. Turn confusing long strings into formatted output. Have objects and classes...