• The DOM
  • Progressive Web Apps
  • Service Workers
  • XHR
  • Fetch API
  • Channel Messaging API
  • Cache API
  • Push API
  • Notifications API
  • IndexedDB
  • Selectors API
  • Web Storage API
  • Cookies
  • History API
  • Efficiently load JavaScript with defer and async
  • The WebP Image Format
  • SVG
  • Data URLs
  • CORS
  • Web Workers
  • requestAnimationFrame()
  • Console API
  • WebSockets
  • The Speech Synthesis API