On JavaScript

Ad lazy loading is not just "load when visible". A useful implementation separates layout reservation, bid requests, rendering, and refresh policy, then tunes each step around real latency and viewability goals.

The official Prebid.js bidder adapter path is registerBidder. This article covers the narrower, reverse-engineered path: registering a runtime adapter with registerBidAdapter and returning bid objects that Prebid can actually match to ad units.

A practical TypeScript pattern for chatbot message parsing: small predicates decide when a parser runs, parser functions emit domain events, and the dispatcher stops only when a command asks it to.

Reducer composition is still the core Redux idea, even though modern Redux code usually starts with Redux Toolkit, configureStore, and createSlice.

A practical browser-side event architecture: publish domain facts with EventTarget and CustomEvent, keep listeners independent, and know when an event bus is the wrong abstraction.