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Node.nodeType

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 ..

Node.nodeType , .

In this article

var type = node.nodeType;

type :

Name Value
ELEMENT_NODE 1
ATTRIBUTE_NODE 2
TEXT_NODE 3
CDATA_SECTION_NODE 4
ENTITY_REFERENCE_NODE 5
ENTITY_NODE 6
PROCESSING_INSTRUCTION_NODE 7
COMMENT_NODE 8
DOCUMENT_NODE 9
DOCUMENT_TYPE_NODE 10
DOCUMENT_FRAGMENT_NODE 11
NOTATION_NODE 12

, documentElement , , .

js
var node = document.documentElement.firstChild;
if (node.nodeType != Node.COMMENT_NODE)
  console.log("You should comment your code well!");

Specification
DOM
# ref-for-dom-node-nodetype

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