The node.ancestors() function returns an array of ancestors nodes, starting with the given node, then followed by each parent up to the root.
Syntax:
node.ancestors();
Parameters: This method takes no parameters.
Return Values: This method returns an array of ancestors nodes.
Example 1:
HTML
<!DOCTYPE html> <html>
<head>
<meta charset="utf-8">
<script src=
</script>
</head>
<body>
<script>
var data = {
"name":"GeeksforGeeks",
"about":"Computer Science Portal",
"children":[
{"name":"GFG1"},
{"name":"GFG2"},
{"name":"GFG3"}
]
}
var root = d3.hierarchy(data);
a=root.ancestors();
console.log(a);
</script>
</body>
</html>
|
Output:
Example 2:
HTML
<!DOCTYPE html> <html>
<head>
<meta charset="utf-8">
<script src=
</script>
</head>
<body>
<script>
var data = {"name":"GFG1"}
var root = d3.hierarchy(data);
console.log(root.ancestors());
</script>
</body>
</html>
|
Output: