Curated examples
Durable explainers you can inspect before publishing your own.
These first-party examples show the framing a public explainer should carry: artifact, audience, original problem, and why a hosted URL beats a local file, screenshot, Gist, or doc.
Express Router Dispatch
Express lazily creates an application router, lets middleware and routes attach to it, then hands each HTTP request to the router with finalhandler as the safety net.
Flask Request Lifecycle
Flask turns a WSGI environ into an application context, runs preprocessors, dispatches the matched view, catches user exceptions, and finalizes a response.
Vite Dev Server
Vite creates a dev server by resolving serve config, building middleware and environment graphs, then transforming module requests and pushing hot updates through WebSocket state.
FastAPI Dependency Solver
FastAPI converts endpoint signatures into a Dependant tree, recursively solves dependencies, validates request parameters, and returns values ready for the endpoint function.