TanStack Query
Listed inTanStack QueryData Fetching and Cachingon
The documentation that reframed server state as a cache problem — keys, staleness, and background refetching.
Newly added · Frontend engineering
A running stream of in-depth pieces on HTML, CSS, JavaScript, frameworks, build tools, testing, performance, web security, and AI-assisted development — each one filed under a category you can browse.
The latest pieces across every category, newest first.
Listed inTanStack QueryData Fetching and Cachingon
The documentation that reframed server state as a cache problem — keys, staleness, and background refetching.
Listed inCore Web VitalsPerformanceon
Why Interaction to Next Paint punishes long tasks rather than slow servers, how to find the blocking work in a trace, and the four fixes that move the number.
Listed inState ColocationComponent Architectureon
The single highest-leverage state change most apps can make: move it down, and the re-render problem disappears.
Listed inCore Web VitalsPerformanceon
The reference definition: what counts as an interaction, how the score is computed from the worst ones, and the thresholds.
Listed inCORSWeb Securityon
A CORS error is a server configuration problem wearing a browser error message. What the preflight actually asks, what breaks when credentials are involved, and the fixes that are not a proxy.
Listed inCORSWeb Securityon
MDN on simple versus preflighted requests, the full header set, and the rules credentials change.
Listed inMicrofrontend ArchitectureMicrofrontendson
Cam Jackson's reference article: the composition approaches side by side, a worked example of each, and an honest accounting of the costs.
The reference everyone actually keeps open: every flex property, on both container and item, with diagrams.
Tracks, lines, areas, and the sizing functions — the companion piece to the Flexbox guide.
Listed inWriting Semantic HTMLHTMLon
Every div you replace with the element that means what you mean deletes a pile of ARIA, keyboard handling, and focus code you would otherwise have to write and maintain.
Listed inRedux ToolkitState Managementon
The official, opinionated Redux — slices, immutable updates via Immer, and RTK Query for server state.
Listed inReactPick a Frameworkon
The React team on the effects that should have been derived state, event handlers, or nothing at all.
Listed inNext.jsServer-Side Renderingon
The normative source on where the boundary falls, what `use client` really marks, and how the two trees compose.
Listed inAccessibilityHTMLon
The filterable quick reference: every success criterion with sufficient techniques and common failures.
Listed inNext.jsServer-Side Renderingon
Where the server/client boundary actually falls, what crosses it, and the four mistakes that turn a server component tree back into a client-rendered app.
Listed inView TransitionsAnimation and Motionon
MDN on animating between two DOM states, same-document and cross-document, with the browser tweening for you.
Listed inModule FederationMicrofrontendson
The normative documentation for hosts, remotes, and shared scopes, now maintained independently of any one bundler.
Listed inThe Event LoopJavaScripton
The clearest explanation of the event loop there is, with a step-through animation of the queues.
Listed inReduced MotionAnimation and Motionon
The media query that asks whether the user wants less movement. Honouring it is an accessibility requirement.
Listed inHow the Internet WorksInterneton
Packets, routers, TCP, and TLS — the delivery mechanism your app inherits whether or not you think about it.