Mastering Browser APIs: Unlock the Full Power of the Modern Web

Overview of the browser API landscape, capabilities, and security model.

Dealing with permissions prompts, HTTPS requirements, and progressive enhancement.

Store and retrieve key-value data; understand lifespan and use cases.

Use asynchronous APIs to store objects, files, and blobs efficiently.

Performance, limitations, and fallback strategies.

Build full-duplex communication channels with a live backend (Node.js).

Push notifications from server to client for updates, feeds, etc.

Compare connection models, use cases, and browser support.

Register and activate a service worker to intercept network requests.

Cache-first and network-first strategies using Workbox or custom logic.

Queue actions and sync them later; receive push messages from a server.

Get user location, handle permissions, and update coordinates.

Display data on maps using Leaflet or Google Maps with browser location.

Handle errors, timeouts, and fallback location sources.

Request permission, show persistent and dynamic notifications.

Handle clicks and close events, and link them to app navigation.

Create background push notifications that display even when app is closed.

Track gyroscope/accelerometer data; detect tilt or shake gestures.

Motion-controlled UI, 3D games, accessibility enhancements.

Optimize polling, use permission-based activation.

Use PaymentRequest to create native payment flows.

How browsers and platforms implement different payment handlers.

Process results and provide user feedback securely.

Handle password autofill, federated logins, and silent sign-ins.

Understand the basics of passwordless authentication and biometrics.

Combine tokens, service workers, and credential storage securely.