D3 Examples - Normalized bar

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<!DOCTYPE html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1.0">
  <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; background-color:#efefef; padding: 2em;}
    svg {
      width: 100%;
      background-color: #fff;
    }
  </style>
</head>
​
<body>
  <svg></svg>
  <script>
    console.clear();
    const svg = d3.select('svg');
    
    const data = [58, 16, 23, 3];
    const margin = {top: 20, right: 20, bottom: 20, left: 20};
    const width = svg.attr('width') - margin.left - margin.right;
    const height = svg.attr('height') - margin.top - margin.bottom;
    
    const x = d3.scaleLinear()
        .rangeRound([height, 0]);
    
    const percentScale = d3.scaleLinear()
        .domain([0, 100])
        .range([0,1]);
    
    console.log(percentScale(data[1]));
    
    const chart = svg.selectAll('rect')
        .data(data)
        .enter().append('rect')
    
    console.log(document.querySelector('svg').getBoundingClientRect().width);
  </script>
</body>
​
    