XPathResult: iterateNext() method

The iterateNext() method of the XPathResult interface iterates over a node set result and returns the next node from it or null if there are no more nodes.

Syntax

js

iterateNext()

Parameters

None.

Return value

The next Node within the node set of the XPathResult.

Exceptions

TYPE_ERR

In case XPathResult.resultType is not UNORDERED_NODE_ITERATOR_TYPE or ORDERED_NODE_ITERATOR_TYPE, an XPathException of type TYPE_ERR is thrown.

INVALID_STATE_ERR

If the document is mutated since the result was returned, an XPathException of type INVALID_STATE_ERR is thrown.

Examples

The following example shows the use of the iterateNext() method.

HTML

html

<div>XPath example</div>
<div>Tag names of the matched nodes: <output></output></div>

JavaScript

js

const xpath = "//div";
const result = document.evaluate(
  xpath,
  document,
  null,
  XPathResult.ANY_TYPE,
  null
);
let node = null;
const tagNames = [];
while ((node = result.iterateNext())) {
  tagNames.push(node.localName);
}
document.querySelector("output").textContent = tagNames.join(", ");

Result

Specifications

Specification
DOM Standard
# dom-xpathresult-iteratenext

Browser compatibility

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