Learn how to build progressive web apps by understanding and implementing their building blocks.

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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

**(Select all that apply.)** Which tasks can be done with a service worker?

(Select all that apply.) Which tasks can be done with a service worker?

Which is *not* a feature of service workers?

Which is not a feature of service workers?

**(Select all that apply.)** Which are the valid service worker events?

(Select all that apply.) Which are the valid service worker events?

 ```js
navigator.serviceWorker.register('/sw.js')
```

```js
window.register.serviceWorker('/sw.js')
```

```js
navigator.register.serviceWorker('/sw.js')
```

Which is the correct way of registering a service worker?

Which is the correct way of registering a service worker?

Test your understanding of the basics of service workers.

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 & UX

Offline Experience with Background Sync API

Web Push Notifications (Notification API, Push API)

Native Device Features

The Photo-Sharing App

Wrapping Up

Quiz: Do You Know About Service Workers?