题解 | #dom 节点查找#
dom 节点查找
https://www.nowcoder.com/practice/74d74be449af4c66907fe2d6961c255c
function commonParentNode(oNode1, oNode2) { if(oNode1.contains(oNode2)) return oNode1; else return commonParentNode(oNode1.parentNode, oNode2); }
The contains()
method returns true
if a node is a descendant of a node.
The contains()
method returns false
if not.
The parentNode
property returns the parent node of an element or node.
The parentNode
property is read-only.