The appinstalled event of the Web Manifest API is fired when the browser has successfully installed a page as an application.
This event is not cancelable and does not bubble.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("appinstalled", (event) => { })
onappinstalled = (event) => { }A generic Event.
You can use the appinstalled event in an addEventListener method:
window.addEventListener("appinstalled", () => {
console.log("Thank you for installing our app!");
});Or use the onappinstalled event handler property:
window.onappinstalled = () => {
console.log("Thank you for installing our app!");
};