if (navigator.getInstalledRelatedApps) {
navigator.getInstalledRelatedApps().then(relatedApps => {
for (let app of relatedApps) {
console.log(app.platform);
console.log(app.url);
console.log(app.id);
}
});
}
window.addEventListener("load", e => {
if (navigator.getInstalledRelatedApps) {
navigator.getInstalledRelatedApps()
.then(apps => {
if(apps.length > 0) { console.log("The app is on the device"); }
else {console.log("The app is NOT on the device.");}
});
}
});