Track the number of Angular 1.x watchers on a page while developing to spot performance issues early. Runs as a bookmarklet and logs the count to the browser console.

RubyMine 2024.3 includes Grazie Lite by default; German spell checking can be enabled in Natural Languages or added with Hunspell and a German dictionary.

Parallel test runs in Geordi can break terminal I/O during debugging; forcing one process or using vanilla cucumber avoids breakpoint issues.

Rails secrets and other configuration values can be read inside webpack bundles with rails-erb-loader, enabling environment-specific client-side settings without hardcoding them.

One-time bindings with :: remove resolved AngularJS watchers and reduce digest overhead when values stay unchanged after rendering.

Indentation-only changes can cause noisy conflicts during merges or cherry-picks; -Xignore-space-change lets Git disregard whitespace differences.

Ignore selected hidden fields when rejecting nested records with accepts_nested_attributes_for, so blank child records are not discarded unexpectedly.

Reduce Font Awesome icon font size by subsetting unused glyphs with fontmin-webpack, keeping low CPU usage and no JavaScript while avoiding oversized font downloads.

Managing multiple S3cmd configurations reduces the risk of sending uploads and deletions to the wrong Amazon S3 bucket. Use separate config files or a symlink to switch between environments.

GitHub-sourced gems installed through Bundler can evade gem list and gem uninstall, leaving manual cleanup under ~/.rbenv as the only removal path.

No built-in RSpec matcher checks whether a string contains terms in a specific order; a multiline regular expression is a common workaround, but readability and failures suffer.

Rails file storage migration with background jobs, reruns, and URL rewrites; large media backfills need careful testing, queue tuning, and fallback handling.

Lightweight grid layouting for mixed-size items with smaller footprint and no dependencies; performance is better than Masonry, but column spanning and built-in transitions are missing.

Rails 7.2 removes Rails.application.secrets; existing apps can keep secrets.yml by mapping it back with config_for and restoring secret_key_base.

Pivotal Tracker story descriptions can now use pasted templates, with custom templates created under More > Templates; the three default templates remain fixed.

Cookie domain restrictions limit which hosts receive session cookies and other secrets, reducing leakage across subdomains and making host naming choices security-relevant.

Remote graphical programs can run on your local desktop through SSH, but X11 forwarding is slower and exposes your X session to a trusted host.

ZIP files from Windows users can corrupt umlauts and other non-Latin1 filenames on Linux because of CP850 encoding. unzip -O CP850 handles these archives correctly.

Chrome can render composited slider elements in the wrong stacking order during CSS transitions, causing overlapping content to appear above neighboring elements until motion ends.

Haml can derive stable CSS classes and IDs from Ruby objects, making elements easy to target from JavaScript or Unpoly updates.

Prefix several HTML attributes at once in Haml by nesting them in a hash with {} syntax; () attribute syntax does not support grouped prefixes.

Rails commands can start Spring unexpectedly, and DISABLE_SPRING disables it only for non-explicit invocations. Different launch paths affect console and rake behavior.