src/language/HTMLDOMDiff.js
function (oldChild) {
            var oldChildInNewTree = newNodeMap[oldChild.tagID];

            return oldChild.children && oldChildInNewTree && getParentID(oldChild) !== getParentID(oldChildInNewTree);
        }
function (oldChild) {
            var oldChildInNewTree = newNodeMap[oldChild.tagID];

            return oldChild.children && oldChildInNewTree && getParentID(oldChild) !== getParentID(oldChildInNewTree);
        }
function ( oldChild ) { var oldChildInNewTree = newNodeMap [ oldChild . tagID ] ; return oldChild . children && oldChildInNewTree && getParentID ( oldChild ) !== getParentID ( oldChildInNewTree ) ; }
Looks to see if the element in the old tree has moved by checking its
current and former parents.

@return {boolean} true if the element has moved
Looks to see if the element in the old tree has moved by checking its current and former parents .