AngularJS elements can flash visible before bindings apply. ng-cloak hides content until Angular loads; preadding ng-hide also prevents flicker but relies on internals.

Built-in CarrierWave image resizing helpers preserve aspect ratio, crop, or pad images to target dimensions, with MiniMagick and RMagick offering the same methods.

PostgreSQL fulltext search misses partial matches in dates, serial numbers, and other token fragments. Trigram indexes speed up wildcard LIKE searches on large tables.

Removing every table while keeping the PostgreSQL database can be done by dropping the schema or iterating through tables with DROP TABLE statements.

bundle install fails with Gem::GemNotFoundException when Bundler 2 runs on RubyGems 2; updating RubyGems to 3.0+ restores the bundle executable.

Uncountable Rails resources break normal route helpers and form handling. resource can still expose the index action through a special _index_path helper.

Basic Auth sends credentials as a Base64-encoded username:password string in the Authorization header; Ruby can generate it with Base64.strict_encode64.

Ruby can read and write CSV files with the standard CSV library, and smarter_csv makes imports more convenient when converting rows into hashes.

System-specific font fallbacks can make text look different across machines; Chrome DevTools can reveal the actual rendered font in the Computed panel.

Single-threaded Puma in development avoids overlapping requests and noisy console output when debugging. Setting -t 0:1 makes other requests wait.

Cucumber can list step definitions separately, helping detect dead or duplicate steps before cleanup. --dry-run and --format stepdefs reveal candidates, but nested step calls can look unused.

Association values in Machinist blueprints need blocks so Project.make runs per blueprint instance, not once at parse time when RSpec loads.

Upgrading Rails across major versions needs staged updates, compatible Ruby and gem versions, and repeated checks in console, server, tests, and config defaults.

Ace editor adds syntax highlighting and auto-indenting for in-browser code editing, with a working brace setup for Ruby on Rails Webpacker and Webpack 2.

l= shows the current file and line in byebug or ruby-debug; where and backtrace print the debugger call stack.

SVG files often need manual size and markup cleanup when the build pipeline does not handle them. SVGOMG runs SVGO in the browser with live preview and easy export.

RubyMine can misclassify a Ruby file as plain text after a filename without extension was created first, leaving syntax highlighting disabled.

Custom data can be attached to ExceptionNotifier fail mails from foreground or background jobs; overridden sections settings may hide it unless data is included.

Make a section stretch past a centered container to the viewport edges without hacks like huge negative margins or clipping; ::before and ::after extend the clickable and colored area.

Katapult 0.5.0 adds deployment support for Opscomplete, template copying to target apps, and improved Webpack-based deployment.

Inactive Google API projects can be hard to identify when notification emails mention only a project number. The Console search and dashboard hide that number, so locating the right project requires checking settings.