d3v5 pie

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v5.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)

svg.append("text")
      .text("Edit the code below to change me!")
      .attr("y", 200)
      .attr("x", 120)
      .attr("font-size", 36)
      .attr("font-family", "monospace")
    
    height = Math.min(width, 500)
    
    arc = d3.arc()
    .innerRadius(0)
    .outerRadius(Math.min(width, height) / 2 - 1)
    
    
    arcLabel = {
  const radius = Math.min(width, height) / 2 * 0.8;
  return d3.arc().innerRadius(radius).outerRadius(radius);
}
    
    pie = d3.pie()
    .sort(null)
    .value(d => d.value)
    
    
    const data = d3.csv("https://gist.githubusercontent.com/mbostock/a3541c73fdccd432acc8b11bf9f02641/raw/2bd0fce0bf34b020e93c5f6527b5a9d08c33ff06/population-by-age.csv", d3.autoType)
    
    const color = d3.scaleOrdinal()
    .domain(data.map(d => d.name))
    .range(d3.quantize(t => d3.interpolateSpectral(t * 0.8 + 0.1), data.length).reverse())
    
    
    const arcs = pie(data);

const svg = d3.create("svg")
      .attr("viewBox", [-width / 2, -height / 2, width, height]);

svg.append("g")
      .attr("stroke", "white")
    .selectAll("path")
    .data(arcs)
    .join("path")
      .attr("fill", d => color(d.data.name))
      .attr("d", arc)
    .append("title")
      .text(d => `${d.data.name}: ${d.data.value.toLocaleString()}`);

svg.append("g")
      .attr("font-family", "sans-serif")
      .attr("font-size", 12)
      .attr("text-anchor", "middle")
    .selectAll("text")
    .data(arcs)
    .join("text")
      .attr("transform", d => `translate(${arcLabel.centroid(d)})`)
      .call(text => text.append("tspan")
          .attr("y", "-0.4em")
          .attr("font-weight", "bold")
          .text(d => d.data.name))
      .call(text => text.filter(d => (d.endAngle - d.startAngle) > 0.25).append("tspan")
          .attr("x", 0)
          .attr("y", "0.7em")
          .attr("fill-opacity", 0.7)
          .text(d => d.data.value.toLocaleString()));

</script>
</body>

https://d3js.org/d3.v5.min.js