NodeIterator: whatToShow property

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since July 2015.

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The NodeIterator.whatToShow read-only property represents an unsigned integer representing a bitmask signifying what types of nodes should be returned by the NodeIterator.

Value

A non-negative integer. For the list of possible values, see document.createNodeIterator().

Examples

const nodeIterator = document.createNodeIterator(
  document.body,
  NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT,
  { acceptNode: (node) => NodeFilter.FILTER_ACCEPT },
);
if (
  nodeIterator.whatToShow & NodeFilter.SHOW_ALL ||
  nodeIterator.whatToShow & NodeFilter.SHOW_COMMENT
) {
  // nodeIterator will show comments
}

Specifications

Specification
DOM # dom-nodeiterator-whattoshow

Browser compatibility

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This page was last modified on Oct 23, 2025 by MDN contributors.

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