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.
NodeIterator: pointerBeforeReferenceNode 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
- The interface it belongs to:
NodeIterator
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https://developer.mozilla.org/en-US/docs/Web/API/NodeIterator/pointerBeforeReferenceNode