d3js bar-chart-race中报错d3.rollup is not a function

Question

vue中使用d3js实现bar-chart-race("d3": "^5.16.0")
var datevalues = Array.from(d3.rollup(data, ([d]) => d.value, d => +d.date, d => d.name)).map(([date, data]) => [new Date(date), data]).sort(([a], [b]) => d3.ascending(a, b))

console.log('datevalues', datevalues);
打印出来报d3.rollup is not a function....
这个要怎么引入?

例子https://observablehq.com/@d3/...

Answer 1

已解决
全局引入d3-array

import * as d3A from "d3-array";
window.d3A = d3A; //设置为全局变量

d3.rollup改成d3A.rollup