What is Service Worker?
A script that runs in the background of a browser, enabling features like offline support and push notifications.
Why It Matters
Service workers allow web apps to cache content and work without an internet connection.
Real-World Example
A news app that caches articles so you can read them on the train even without mobile signal.
“Understanding terms like Service Worker matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Progressive Web App (PWA)
A website that can work like a native app, with offline support, push notifications, and home screen installation.
Cache
A temporary storage that keeps copies of frequently accessed data for faster retrieval
Web Manifest
A JSON file that tells the browser how your web app should appear when installed on a device.
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Related Terms
Cache
A temporary storage that keeps copies of frequently accessed data for faster retrieval
Progressive Web App (PWA)
A website that can work like a native app, with offline support, push notifications, and home screen installation.
Web Manifest
A JSON file that tells the browser how your web app should appear when installed on a device.
Frontend
The part of a website or app that users see and interact with directly
React
A popular tool for building user interfaces, created by Facebook, that makes complex UIs easier to manage
Next.js
A framework built on React that adds features like page routing, server-side rendering, and API handling