d3js tree.nodes() is not a function

问题

While the below piece of code works find in d3v3, it fails in v4.

 var nodes = tree.nodes(root).reverse(),
      links = tree.links(nodes);

Uncaught TypeError: tree.nodes is not a function

What is the alternative for it in v4?

回答1:

import { hierarchy, tree } from 'd3-hierarchy'

// create a hierarchy from the root
const treeRoot = hierarchy(root)
tree(treeRoot)
// nodes
const nodes = treeRoot.descendants()
// links
const links = treeRoot.links()

来源：https://stackoverflow.com/questions/41087568/d3js-tree-nodes-is-not-a-function