Web Development Intermediate

What is Progressive Web App (PWA)?

A web application that uses modern web capabilities to deliver app-like experiences with offline support and push notifications.

PWAs combine the reach of websites with the capabilities of native apps. Key technologies include Service Workers (offline support, background sync), Web App Manifest (installability), and Push API (notifications).

PWAs work on any device, can be installed on the home screen, work offline, and receive push notifications. They avoid app store distribution requirements while providing native-like experiences.

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Techniques to make websites load faster and respond more quickly, improving user experience and search engine rankings.

The latest HTTP version that uses QUIC instead of TCP, providing faster connections and better performance on unreliable networks.

Server-Sent Events

A server push technology that enables a server to send real-time updates to a browser over a single HTTP connection.

Web Accessibility (a11y)

The practice of designing websites that can be used by people with disabilities, following WCAG guidelines.

Content Negotiation

An HTTP mechanism where client and server agree on the best representation of a resource based on format, language, or encoding preferences.

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