TreeWalker: lastChild() method
  The TreeWalker.lastChild() method moves the current
  Node to the last visible child of the current node, and returns
  the found child. If no such child exists, it returns null and the current node is not changed.
Syntax
js
lastChild()
Parameters
None.
Return value
A Node object or null.
Examples
js
const treeWalker = document.createTreeWalker(
  document.body,
  NodeFilter.SHOW_ELEMENT,
  {
    acceptNode(node) {
      return NodeFilter.FILTER_ACCEPT;
    },
  },
);
const node = treeWalker.lastChild(); // returns the last visible child of the root element
Specifications
| Specification | 
|---|
| DOM Standard # dom-treewalker-lastchild | 
Browser compatibility
BCD tables only load in the browser
See also
- The TreeWalkerinterface it belongs to.