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NodeIterator: pointerBeforeReferenceNode property

The NodeIterator.pointerBeforeReferenceNode read-only property returns a boolean flag that indicates whether the NodeFilter is anchored before (if this value is true) or after (if this value is false) the anchor node indicated by the NodeIterator.referenceNode property.

Value

A boolean.

Examples

js

const nodeIterator = document.createNodeIterator(
  document.body,
  NodeFilter.SHOW_ELEMENT,
  {
    acceptNode(node) {
      return NodeFilter.FILTER_ACCEPT;
    },
  },
);
flag = nodeIterator.pointerBeforeReferenceNode;

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
pointerBeforeReferenceNode 1 17 3.5 No ≤15 3 4.4 18 4 ≤14 3 1.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/NodeIterator/pointerBeforeReferenceNode