What is public/manifest.json file in create-react-app?

I know that chrome extensions use 'manifest.json`, but here, it is used as something else as well.

contents -

{ "short_name": "React App", "name": "Create React App Sample", "icons": [ { "src": "favicon.ico", "sizes": "192x192", "type": "image/png" } ], "start_url": "./index.html", "display": "standalone", "theme_color": "#000000", "background_color": "#ffffff" } 

When I change some value, page update, but nothing changes.

3 Answers

It's a Web App Manifest that describes your application and it's used by e.g. mobile phones if a shortcut is added to the homescreen.

From MDN (linked above):

The web app manifest provides information about an application (such as name, author, icon, and description) in a JSON text file. The purpose of the manifest is to install web applications to the homescreen of a device, providing users with quicker access and a richer experience.

manifest.json is the json file that is mostly used to describe our app On mobile phones

The manifest.json provides information about a web application in a JSON text file, necessary for the web app to be downloaded and be presented to the user similarly to a native app (e.g., be installed on the homescreen of a device, providing users with quicker access and a richer experience). PWA manifests include its name, author, icon(s), version, description, and list of all the necessary resources (among other things).