PWA
Everything on SkillVeris tagged PWA — collected across the glossary, study notes, blog, and cheat sheets.
9 resources across 2 libraries
Glossary Terms(1)
Interview Questions(8)
What is a Service Worker?
A service worker is a background JavaScript script the browser runs separately from the page, letting it intercept network requests, cache responses, and enabl…
What Are Service Worker Caching Strategies?
A service worker caching strategy is the policy a service worker’s `fetch` event handler applies to decide whether a request is served from the Cache API, the…
What Is a Progressive Web App (PWA)?
A Progressive Web App is a website built with a web app manifest and a service worker so it can be installed to a device’s home screen, launch in its own windo…
What Is Offline-First Architecture?
Offline-first architecture designs an app to treat local storage as the primary source of truth and network connectivity as an enhancement, so the UI stays ful…
What Is the Background Sync API?
The Background Sync API lets a web app register a deferred task with a Service Worker so that a failed or offline action, like submitting a form, automatically…
How Do Web Push Notifications Work?
Web push notifications work by having the browser generate a unique subscription endpoint tied to a push service, which the app’s server later calls with an en…
What Is the Cache API and How Does It Differ From HTTP Caching?
The Cache API is a programmable, script-controlled storage mechanism for Request/Response pairs that a Service Worker uses to explicitly decide what to store a…
How Does Browser Storage Quota Management Work?
Browsers grant each origin a share of disk space for localStorage, IndexedDB, and Cache Storage that is bounded by a quota the browser computes from total free…