Build PWAs with offline support, push notifications, and responsive design. Learn service workers, caching, and optimization for native-like experiences.

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Web development is challenging, but progressive web applications provide a significant advantage over traditional web applications by enabling capabilities such as installation to the device, offline access, and push notifications.

You’ll start by learning about PWAs and understanding the core tenets of a PWA. Next, you’ll learn to implement features like offline support, intercepting network requests, and app installation banners using service worker APIs. You’ll then progress to caching strategies for improved performance, IndexedDB for storing data locally, and background syncing for unstable networks. Finally, you’ll cover responsive web design and native-device APIs to make your PWA feel and look like a native app.

After completing this course, you can build progressive apps with engaging and responsive experiences. You’ll also be prepared to optimize your existing web apps as PWAs, extending their reach and improving performance.

Building Progressive Web Applications

The **Add-to-Home-screen (A2HS)** feature allows users to install and use a website as a natively installed app. 

After successfully creating and referencing the app manifest to web pages, the web app can be installed using the A2HS feature provided by various browser vendors. 



# Browser support for the A2HS feature

At this time, the latest versions of most major web browsers support the Add-to-Home-screen feature. For example, Chrome fully supports this feature on the desktop’s Edge, while Safari only provides partial support. On Android devices, Chrome, Firefox, Samsung Internet, and some others have full support for this. 

For a comprehensive list of browser versions that support this feature, check this [link](https://caniuse.com/#feat=web-app-manifest).


Understand the "Add to Home Screen" experience provided by various browsers more in this lesson.

Introduction

Understanding the App Manifest

The Service Workers

Caching Using Service Workers

Cache Strategies

Offline Image Viewer

IndexedDB

Note-Taking App

Creating App-Like UI and UX

Offline Experience with Background Sync API

Web Push Notifications (Notification API, Push API)

Native Device Features

The Photo-Sharing App

Wrapping Up

Learn to Localize a React Web App Using React Intl

The Add to Home Screen Experience

Browser support for the A2HS feature