Web Development Intermediate

What is Web Components?

A set of browser-native APIs for creating reusable, encapsulated custom HTML elements with their own styling and behavior.

Web Components use three main technologies: Custom Elements (define new HTML tags), Shadow DOM (encapsulated styling and markup), and HTML Templates (reusable markup structures). They work natively in modern browsers without frameworks.

Web Components are framework-agnostic — use them with React, Vue, Angular, or vanilla JavaScript. Libraries like Lit simplify Web Component development. They are ideal for design systems and shareable UI components.

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A technique that delays loading non-critical resources until they are needed, improving initial page load performance.

A vocabulary for validating the structure and content of JSON data, ensuring API requests and responses conform to expected formats.

HTTP headers that control cross-origin resource sharing between different domains, specifying allowed origins, methods, and headers.

A mechanism where a server sends real-time HTTP POST notifications to a specified URL when specific events occur.

The second major version of HTTP that improves performance through multiplexing, header compression, and server push.

Structured Data (Schema.org)

A standardized vocabulary for marking up web content so search engines can understand and display it as rich results.

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