Opinionated Angular conventions for teams improve code consistency, readability, and maintainability across components, services, and templates.

Send deployment notifications from Capistrano to Slack channels using slackistrano and incoming webhooks, with customizable message formatting.

Styling repeated elements with :last-child breaks when unrelated siblings appear; sibling selectors like + and ~ handle spacing and borders more reliably.

Generate Excel spreadsheets from Rails views without a gem, using .xlsx.erb templates and avoiding spreadsheet gem limits on performance and styling.

Indented Sass uses // comments with every following line indented two spaces, making multiline documentation blocks possible.

Look up the model class behind a FactoryBot factory name; FactoryBot.factories.find('admin').build_class returns the associated class.

Rails can hand file delivery to Apache with X-Sendfile, reducing application-server load and preventing zero-byte downloads when local files are sent.

Webfonts can change layout after first render; detecting readiness avoids wrong measurements. Modern browsers use document.fonts.load, while older support needs font-dimension watching.

CSS3 animations can flicker or stutter when browser rendering shifts between CPU and GPU paths. Forcing GPU compositing with translate3d(0,0,0) can smooth motion, with possible image-quality tradeoffs.

Sass mixins and extends both support modular styles, but current browsers produce smaller gzipped CSS and faster evaluation with mixins.

Redis Pub/Sub provides a lightweight way to broadcast messages to multiple subscribers in real time.

Official Google GitHub repository with binary font files from Google Fonts for local download and installation.

Split an enumerable into matching and non-matching groups with Enumerable#partition, returning two arrays and working naturally with destructuring assignment.

Count table records in a MySQL database without querying each table separately, using INFORMATION_SCHEMA.TABLES to inspect row estimates.

Cross-subdomain session cookies in Rails 3 need a shared cookie domain; local development can fail with CSRF token errors when browsers reject the cookie.

Online markdown preview lets writers see formatting changes instantly, with or without GitHub Flavoured Markdown support.

Window functions in PostgreSQL support running totals, rankings, and per-group calculations without collapsing rows; common table expressions can simplify complex analytical queries.

Web typography choices strongly affect readability and visual hierarchy, and common mistakes can make text hard to scan or unbalanced.

Remove individual pages from Google search results on a site you control by using Webmaster Tools and the Google Index removal feature.

Compile .jst templates into JavaScript functions via the asset pipeline for rendering with JST[...], including EJS and Eco templates.

Multiple image-processing steps on a CarrierWave version can trigger extra MiniMagick commands; combining options into one process keeps them in a single mogrify call.

MySQL GET_LOCK provides a simple distributed mutex for ensuring only one instance runs across machines without creating lock rows.

jsonb in PostgreSQL 9.4 stores JSON differently from json and suits queries, indexing, and Rails 4.2 integration better for many use cases.

BEM-style selectors can be generated from plain-language Cucumber locators, reducing repetitive typing when mapping readable step text to CSS classes.