Single-line text can overflow its container in Rails views; text-overflow: ellipsis and white-space: nowrap produce cleaner truncation in supported browsers.

Parallel test runs can trigger missing-savepoint rollback errors when processes share a database or transactional test settings conflict.

Fix files whose special characters were saved with the wrong encoding, such as UTF-8 text shown as latin1 mojibake, by reopening them in Vim with the correct file encoding.

Chrome supports desktop pop-up notifications through WebKit's webkitNotifications API, letting websites trigger popup bubbles from JavaScript.

Capybara and Cucumber can assert whether a labeled form control is present or absent, with step definitions needing adjustment across older Capybara versions.

Restart the GNOME panel without signing out when widgets or the panel cache are stale; killall gnome-panel often brings it back automatically.

Simple Ruby console library for showing task progress during long-running jobs with minimal setup.

Sunspot can fail with 400 Bad Request in adapt_response when Solr uses the wrong schema. Copy Sunspot’s schema.xml into Solr’s config and restart the server.

JavaScript that touches the DOM can run too early and fail before elements exist in the parsed tree. Waiting for DOM ready avoids timing bugs and missing nodes.

Move a single Git commit to another repository without adding a remote by exporting a patch and applying it in the target repository.

String-based belongs_to associations break eager loading and scope includes in ActiveRecord, causing missing-association errors. Defining associations with symbols avoids the configuration error.

Chaining grep with tail -f needs --line-buffered, otherwise matches may not appear immediately in a pipeline.

git diff omits staged changes; git diff --cached shows the changes already added to the index and ready for the next commit.

Create .xls files with the spreadsheet gem and apply number formats for currency and dates, including cell links.

Running Solr with Sunspot adds Rails search, but requires local setup, reindexing, error handling, and production configuration for a separate Solr server.

Photoshop has no preference for opening files at 100% zoom instead of fitting them to the screen. After opening, Ctrl-Alt-0 or the magnifier tool returns to full size.

Check whether HTML5 features are ready for use and how to adopt them safely with polyfills, fallbacks, or native support.

Controller specs usually skip template rendering; integrate_views in RSpec 1 or render_views in RSpec 2 enables view rendering for specs that need it.

Backport Rails 3 ActiveRecord querying and chained scopes to Rails 2, including where, order, and to_sql for scopes.

Provides Ruby 1.9 features for Ruby 1.8 applications, easing upgrades and compatibility gaps without changing the runtime.

Ruby 1.9 code coverage tool with configurable reporting and automatic merging across test suites; rcov remains for Ruby 1.8.

Install a chosen RubyGems release for consistent behavior across servers; gem update --system can target an exact version and even downgrade.

Bootstrap-styled jQuery UI theme with a cleaner look than the default jQuery UI appearance, useful when matching a modern UI without adopting the full Bootstrap framework.