Node: compareDocumentPosition()

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compareDocumentPosition() Node , .

Node.DOCUMENT_POSITION_DISCONNECTED (1): .
Node.DOCUMENT_POSITION_PRECEDING (2): otherNode .
Node.DOCUMENT_POSITION_FOLLOWING (4): otherNode .
Node.DOCUMENT_POSITION_CONTAINS (8): otherNode .
Node.DOCUMENT_POSITION_CONTAINED_BY (16): otherNode .
Node.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC (32): / , .

. , otherNode , compareDocumentPosition(), DOCUMENT_POSITION_CONTAINS DOCUMENT_POSITION_PRECEDING, 10 (0x0A).

const head = document.head;
const body = document.body;

if (head.compareDocumentPosition(body) & Node.DOCUMENT_POSITION_FOLLOWING) {
  console.log("  ");
} else {
  console.error("<head>    <body>");
}

: , compareDocumentPosition(), , .

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

Node.contains()

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This page was last modified on 10 . 2024 . by MDN contributors.

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Node: compareDocumentPosition()

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