Function insertOrAppendPlacementNode

docs/index.js:11199–11211

(node, before, parent)

        (node = node.sibling);
}
function insertOrAppendPlacementNode(node, before, parent) {
  var tag = node.tag;
  if (5 === tag || 6 === tag)
    (node = node.stateNode),
      before ? parent.insertBefore(node, before) : parent.appendChild(node);
  else if (4 !== tag && 27 !== tag && ((node = node.child), null !== node))
    for (
      insertOrAppendPlacementNode(node, before, parent), node = node.sibling;
      null !== node;

    )
      insertOrAppendPlacementNode(node, before, parent), (node = node.sibling);
}
var offscreenSubtreeIsHidden = !1,
  offscreenSubtreeWasHidden = !1,
  needsFormReset = !1,