Modern cameras often produce JPEGs that have a "I should be rotated 90° to the left" flag. If you process...
Capybara gives you two different methods for executing Javascript: page.evaluate_script("$('input').focus()") page.execute_script("$('input').focus()")
Rarely, you might want to rebuild all gems with native extensions, because they might be compiled against outdated system libraries...
Ever wanted to preview a pattern from Subtle Patterns on your site without the hassle of swapping out images and...
gleeBox is an experimental project that takes a keyboard-centric approach to navigating the web. It provides alternatives to actions...
Icon fonts like Font Awesome are infinitely scalable, look great on high-DPI displays and will give your app a...
You can use scheme-less URLs (or protocol-relative URLs) to have browsers use the current protocol (HTTP or HTTPS...
Having your site run on SSL is worthless when you include content over an unsafe connection (HTTP).
Under certain (unknown) circumstances, Rails will give localized files an invalid content-type in the Response header. For me, after...
Generally, Selenium tests use the browser to interact with the page. If it's unavailable, a timeout error is...
If you're using the Capybara webdriver, steps sometimes fail because the browser hasn't finished loading the next page...
Our most recent pattern is EMAIL = /\A[a-z0-9\+\-_\.]+@[a-z\d\-.]+\.[a-z]+\z/i Notes
Browser rendering engines are very slow at rendering large box shadows. I had a situation where a complex layout with...
url = 'http://www.foocorp.com/foo/bar' URI.parse(url).host # => www.foocorp.com Note that this will raise an error if the given argument is...
In theory you can take any scope and extend it with additional joins or conditions. We call this chaining scopes...
ActiveModel::Errors is used to handle validation errors on Rails objects. If you inspect an instance, it feels like a...
Around will not happen until after a feature's Background has been processed. Use Before and After to avoid that...
Hashrocket Lunch n' Learn #1 with Avdi Grimm: Making Little Classes out of Big Ones A look at the pros...
If you require your Rails models manually, pay attention to the path you use. Unless you have...
Why is this useful? You can have a background image on the same element, overlaying it with a transparent gradient...
When is this useful? When both parent and child elements have borders, with this technique you don't get two...
If your application has forms to edit string fields, you probably want to strip the entered values (remove whitespace from...
“Fat models” cause maintenance issues in large apps. Only incrementally better than cluttering controllers with domain logic, they usually represent...
In a Rails application, *_spec.rb files get special treatment depending on the file's directory. E.g. when you put a...