PWA（Progressive web apps，渐进式 Web 应用）运用现代的 Web API 以及传统的渐进式增强策略来创建跨平台 Web 应用程序。这些应用无处不在、功能丰富，使其具有与原生应用相同的用户体验优势。这组文档和指南告诉您有关 PWA 的所有信息。¶

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PWA 的优势¶

PWA 是可被发现、易安装、可链接、独立于网络、渐进式、可重用、响应性和安全的。关于这些含义的细节，请参阅 PWA的优势。关于如何实施PWA，请参阅下面列出的指南。

以下指南通过简单的示例和工作原理，展示了实施PWA需要做什么。

localForage — a nice simple JavaScript library for making client-side data storage really simple; it uses IndexedDB by default, and falls back to Web SQL/Web Storage if necessary.
ServiceWorkerWare — an Express-like microframework for easy Service Worker development.
oghliner — not only a template but a tool for deploying Offline Web Apps to GitHub Pages.
sw-precache — a node module to generate service worker code that will precache specific resources.
workbox — spiritual successor to sw-precache with more advanced caching strategies and easy precaching.
upup — a tiny script that makes sure your site is always there for your users.
The service worker cookbook — A series of excellent service worker/push recipes, showing how to implement an offline app, but also much more.