<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>DOM Traversal</title>
</head>
<body>
<div id="rootA">
<div>
<div></div>
</div>
<div></div>
<div>
<div>
<div id="nodeA"></div>
<div></div>
</div>
</div>
</div>
<div id="rootB">
<div>
<div></div>
</div>
<div></div>
<div>
<div>
<div id="nodeB"></div>
<div></div>
</div>
</div>
</div>
</body>
</html>
const rootA = document.getElementById("rootA");
const rootB = document.getElementById("rootB");
const nodeA = document.getElementById("nodeA");
const nodeB = document.getElementById("nodeB");
const path = [];
const findPath = () => {
let currNode = nodeA;
while (currNode !== rootA) {
path.push(Array.from(currNode.parentElement.children).indexOf(currNode));
currNode = currNode.parentElement;
}
};
const findB = () => {
let currNode = rootB;
while (path.length > 0) {
currNode = currNode.children[path.pop()];
}
console.log(currNode, currNode === nodeB);
};
findPath();
findB();
Related