Build a PWA Using Only Vanilla JavaScript

Last updated 1 year ago by Sayan Mondal


Progressive Web App (PWA)

“A Progressive Web App (PWA) is a web app that uses modern web capabilities to deliver a native app-like experience to users. These apps meet certain requirements (see below), are deployed to servers, accessible through URLs, and indexed by search engines.”

A Progressive Web App (PWA) works like any other normal app but with a lot of added features and a lot less hassle. They are fast, reliable, and can work perfectly in an offline environment.

Why should we use it?

Progressive Web Apps (PWAs) creates a very rich experience for the users because they are:

  • Responsive

A PWA can be built to fit into a desktop browser, mobile phone, or TV screen— any product that supports internet connection and has browser support.

  • Reliable

It uses a technology called a Service Worker which enables the users to load PWAs instantly in their environment. A PWA can give offline support for the application, and the user won’t face network related issues.

  • No App Store/Play Store

Users don’t need to visit an app store to download these Progressive Web Apps. They can be installed instantly and directly from the browser. Requires no waiting time as they are very quick and give a native application like simulation.

  • Engaging for developers as well as users

Developers can also add/play around with tons of features in the manifest files. One of the most well-known features is re-engaging users with push notifications enabled by the PWA.

  • Easy to share

Progressive Web Apps are very easy to share with your friends or colleagues. All that a user needs to share is the website/app URL. Users don’t need to share an installable apk or go through the process of verification followed by downloading tons of files. All that a user requires is a simple click.

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