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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Related Terms

A query language for APIs that lets clients request exactly the data they need, reducing over-fetching and under-fetching.

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.

A two-dimensional CSS layout system for creating complex grid-based designs with rows and columns.

API (Application Programming Interface)

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

Web Performance Optimization

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

A typed superset of JavaScript that adds static type checking, interfaces, and advanced IDE support to JavaScript development.

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