d3js tree.nodes()不是函数

Question

虽然下面的代码可以在d3v3中找到,但它在v4中失败了.

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

未捕获的TypeError:tree.nodes不是函数

它在v4中的替代方案是什么？

Answer 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()