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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A high-performance RPC framework using Protocol Buffers and HTTP/2 for efficient service-to-service communication.

DOM (Document Object Model)

A programming interface for HTML documents that represents the page structure as a tree of objects that can be manipulated with JavaScript.

Storing copies of frequently accessed data in faster storage to reduce load times and server processing.

CDN (Content Delivery Network)

A distributed network of servers that delivers web content to users from the geographically closest location.

API (Application Programming Interface)

A set of rules and protocols that allows different software applications to communicate and exchange data.

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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