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":"neveropen", "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: