NodeIterator: nextNode() method

{{APIRef("DOM")}}

The NodeIterator.nextNode() method returns the next node in the set represented by the {{domxref("NodeIterator")}} and advances the position of the iterator within the set. The first call to nextNode() returns the first node in the set.

This method returns null when there are no nodes left in the set.

In old browsers, as specified in old versions of the specifications, the method may throws the INVALID_STATE_ERR {{domxref("DOMException")}} if this method is called after the {{domxref("NodeIterator.detach()")}} method. Recent browsers never throw.

Syntax

nextNode()

Parameters

None.

Return value

A {{domxref("Node")}} representing the node after the current node in the set represented by this NodeIterator, or null if the current node is the last node in the set.

Examples

const nodeIterator = document.createNodeIterator(
  document.body,
  NodeFilter.SHOW_ELEMENT,
  {
    acceptNode(node) {
      return NodeFilter.FILTER_ACCEPT;
    },
  },
);
currentNode = nodeIterator.nextNode(); // returns the next node

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• The interface it belongs to: {{domxref("NodeIterator")}}.