1.What are PWAs?
Progressive Web Apps combine the best of web and mobile apps.
2.Service Workers
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('/sw.js')
.then(reg => console.log('SW registered', reg))
.catch(err => console.log('SW error', err));
}
3.Manifest
{
"name": "My PWA",
"short_name": "PWA",
"start_url": "/",
"display": "standalone",
"background_color": "#ffffff",
"theme_color": "#000000"
}
4.Offline Support
Cache strategies for offline functionality.