Provides a value container that guarantees atomic updates to this value in a multi-threaded Ruby program. Originally linked to...
For me guard recently took a very long to start (as in "minutes"), because I had lots of images in...
Travis CI is a free continuous integration testing service. However, it is really fragile and will break more than it...
When you tell rbenv to install a Ruby it does not know about, you will get an error message.
When you have a string containing umlauts which don't behave as expected (are not matched with a regexp, can...
Warnings like those below may originate from rspec or shoulda-matchers or other gems that have not updated yet to...
SimpleForm is a great approach to simplifying your forms, and it comes with lots of well-defined input types. However...
When your Rails controller action responds with only a simple text, render text: 'Hello' may not be what you want...
If you get this error when you try to resize an OpenStack instance: # nova resize example 23 --poll
config.action_controller.action_on_unpermitted_parameters enables logging or raising an exception if parameters that are not explicitly permitted are...
When using @media CSS queries, Internet Explorer 8 and below will fail to respect them. Though there are several options...
Edge Rider gives your relations a method #origin_class that returns the class the relation is based on.
Spring is a Rails application preloader. When debugging e.g. the rails gem, you'll be wondering why your raise, puts...
Programatically invoke Rails generators Require the generator, instantiate it and invoke it (because generators are Thor::Groups, you need...
Rubygems can produce lots of deprecation warnings, but sometimes, you cannot fix them. To have a tidy terminal with output...
If you want to label things with a color but don't actually care which cholor, you can use the...
So you have a restangular collection and you want to remove an element from it, after you've successfully deleted...
better_errors is an awesome gem for enhanced error pages in development, featuring a live-REPL for some light debugging...
All the hidden and not hidden features of Git and GitHub.
We now have a gem that supports our form model approach.
Directory of popular Github projects.
Development environment setup Rails Composer Basically a comprehensive Rails Template. Prepares your development environment and lets you select web server...
String#indent is not a standard Ruby method. When you use it, be sure to know where this method comes...
Using git checkout - you can switch back to the branch you previously worked on. (master) $ git checkout foobar