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Virtual DOM

Web

An in-memory copy of the DOM used to optimize UI updates.

A virtual DOM is a lightweight JavaScript representation of the real DOM. Libraries like React compute the minimal set of changes by diffing the previous and next virtual trees, then apply only those changes to the real DOM, improving performance.

Related Web terms

JSON

A lightweight, text-based data-interchange format.

 HTML

The standard markup language for web page structure.

 REST

An architectural style for designing networked APIs.

 API

A set of rules that lets software components communicate.

 HTTP

The protocol browsers and servers use to exchange data.

 CSS

A language for styling the presentation of web pages.
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