D3 Examples - Barchart

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    .bar {
                fill: red;
        }
  </style>
</head>
​
<body>
  <script>
    var width = 960;
    var height = 500;
    var nodeData = [
      {key: 'A', value: 336},
      {key: 'B', value: 98},
      {key: 'C', value: 57},
      {key: 'D', value: 77},
    ];
    var xScale = d3.scaleOrdinal().domain([0, d3.max(nodeData, function (d) {d.value})]).range([height, 0])
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", width)
      .attr("height", height)
    bars = svg.selectAll('.bar').data(nodeData).enter()
    bars.append("rect")
        .classed('bar', true)
      .attr("height", function(d) { return d.value })
      .attr("width", xScale.rangeBand())
        .attr("x", function(d, i) { return i * 12 })
        
​
  </script>
</body>
​
    