Node.js is an open-source, cross-platform,
back-end JavaScript runtime environment
that runs on the V8 engine and executes
JavaScript code outside a web browser.*
Node.js is an open-source server side runtime environment built on
Chrome's V8 JavaScript engine. It provides an event driven, non-blocking
(asynchronous) I/O and cross-platform runtime environment for building
highly scalable server-side applications using JavaScript.Is a child of EventTarget
Node = DOM objects = Attr, CharacterData (which Text, Comment, and CDATASection are all based on), ProcessingInstruction, DocumentType, Notation, Entity, and EntityReference.
function isNode(o){
return (
typeof Node === "object" ? o instanceof Node :
o && typeof o === "object" && typeof o.nodeType === "number" && typeof o.nodeName==="string"
);
}