Ruby debugger breaks on plain expressions at breakpoints unless they are evaluated explicitly; eval or set autoeval lets unknown input run in the breakpoint context.

Old binary log files consume disk space and can be removed safely after retention needs are met. PURGE BINARY LOGS deletes archived logs older than a chosen cutoff.

Untangling JavaScript spaghetti in Rails front ends by splitting responsibilities into separate layers without a JavaScript framework.

Parses social-network URLs to extract IDs or screen names without confusing child routes. It does not resolve IDs from screen names alone.

Rails 4 no longer needs the :assets Gemfile group because production no longer triggers unwanted on-demand asset compilation.

RSpec 3 no longer infers spec type from folder names, which can break helpers like routing in existing suites. Set type explicitly or re-enable file-location inference.

List every branch with the author of its newest commit, useful for spotting ownership or stale branches. git for-each-ref with sorting outputs branch names and commit authors.

Favicon variants can break silently when some image sizes or platform-specific tags point to missing files. An integration check can verify that every icon URL returns 200.

Spreewald 1.1.0 removes be_true and be_false to stay compatible with RSpec 3 and Ruby 2, replacing them with == true and == false.

Retrieve Google Page Rank, Alexa Rank, backlink counts, and index counts for a site without manual lookup.

Cross-domain AJAX requests with jQuery suppress X-Requested-With and CSRF headers for security, so servers may not recognize them as AJAX. A prefilter can re-enable headers for trusted hosts.

Rails 2.3 can return either HTML or JSON from one controller action, but render_to_string inside format.json may trigger ActionView::MissingTemplate.

Makes cross-domain XHR work by tunneling communication through an IFRAME on the page, enabling requests that browser same-origin rules would block.

Ruby percent notation offers an alternative way to write strings without escaping quotes, useful for embedded apostrophes or quotation marks.

Ruby can override the backtick operator with a method named `, making command execution syntax callable as ordinary object behavior.

spreewald now provides a binary that lists available steps and can filter them by a search term.

debugger is unreliable on Ruby 2; byebug provides a fast, reliable debugger for Ruby 2.0.0+ using TracePoint and Debug Inspector.

Custom RSpec matcher for verifying delegated methods in Ruby models, including prefixed delegation like author_name.

AngularJS-native UI elements implement Google Material Design as a complement to Polymer's paper elements, giving Angular apps a consistent material-style interface.

Reusable UI components implement Google’s Material Design for web apps, offering prebuilt Paper elements for consistent interfaces.

Sass lacks a built-in way to assign a color a fixed hue; adjust-hue only shifts hues relatively. A small helper can target an absolute hue value.

Skype 4.3 on Linux fixes group chat problems with non-Linux clients and may require removing Ubuntu packages before reinstalling.

Manage many server sessions in terminator with split panes, window focus changes, and quick title editing using keyboard shortcuts.

Automatically wraps Bower packages as gems for the Rails asset pipeline, but duplicate JavaScript copies can conflict when mixed with other package sources.