Node - MDN Web Docs Glossary: Definitions of Web-related terms 编辑

The term node can have several meanings depending on the context. It may refer to:

Node (DOM)

In the context of the DOM, a node is a single point in the node tree. Various things that are nodes are the document itself, elements, text, and comments.

Node (networking)

In networking, a node is a connection point in the network. In physical networks, a node is usually a device, like a computer or a router.

Another use of the word is when talking about Node.js