component

A standardized suite of browser APIs used to create encapsulated, reusable UI elements that function across any modern framework.

Component architecture leverages Custom Elements, Shadow DOM, and HTML Templates to build modular interfaces without global scope conflicts. By defining a custom tag (e.g., <user-card>), developers package logic and styles into a single, portable unit. This specification powers major design systems like Adobe Spectrum and Salesforce Lightning, ensuring 100% interoperability between React, Vue, and vanilla JavaScript environments. It eliminates the overhead of proprietary library lock-in by utilizing the browser's native rendering engine for high-performance UI delivery.

https://www.webcomponents.org/