The following code doesn't work like expected: page.find(css_selector).find(other_css_selector) The second .find will search...
Great presentation about writing Javascript like you write everything else: Well-structured and tested. JavaScript is no longer a toy...
Access the Method object Dead simple: Get the method object and ask for its owner: "foo".method(:upcase) # => #
Rails flashes (FlashHash) track a list of used keys, which is not respected when comparing flash hashes.
Smashing Magazine lists some handy tricks for print style sheets, all with CSS: Expand External Links For Print
CSSmatic lets you play around with four rather complex CSS stylings and gives you CSS or SASS code to use...
Do not pass times to date attributes. Always convert times to dates when your application uses time zones. Background
Rails understands a :limit options when you create columns in a migration. Its meaning depends on the column type, and...
Guide how to make fixes in other people's GitHub repositories. It's basically "Open Source Development 101".
TL;DR: You should generally use #size to count associated records. size Counts already loaded elements If the association is...
Here is a hacky way to load dumps directly from the source server, without fully copying them over and extracting...
tl;dr: Do not use merge! for session hashes. Use update instead. Outline Let's assume you're modifying the...
JavaScript has no built-in functions to compare two objects or arrays for equality of their contained values.
MongoMapper is a MongoDB adapter for Ruby. We've forked it so it works for Rails 2.3.x applications running...
Ruby 1.9 changed the default behavior of Module.const_defined? from what it was in Ruby 1.8 -- this can be especially...
If you need to capture signatures on an IPad or similar device, you can use Thomas J Bradley's excellent...
This page lists many query methods and options in ActiveRecord which do not sanitize raw SQL arguments and are not...
UnicodeUtils implements Unicode algorithms for case conversion, normalization, text segmentation and more in pure Ruby code.
In our continued quest to extract proven code snippets from makandropedia into tested and upgradable gems, we have released Edge...
TLDR: Ruby class variables (@@foo) are dangerous in many ways. You should avoid them at all cost. See bottom of...
There is a bug in ActiveRecord 2.3.x that leads to changes in nested forms getting lost. class Project < ActiveRecord...
Microsoft provides virtual machines for different Internet Explorer versions. The images are available for various virtualization solutions, including VirtualBox...
January has been a very bad month for Ruby on Rails developers, with two high-severity security bugs permitting remote...
Consul 0.6.1+ gives you a way to dynamically access and query powers for a given name, model class or record...