D3 Examples - scaling and axes

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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; }
    svg{
      width : 100%;
      height: 100%;
    }
  </style>
</head>
​
<body>
  <svg>
  </svg>
  
  
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var data = [120, 250, 175, 200, 80];
    var rectWid = 10; 
    var height = 300;
    
    // domain is the input, range is the output.
    // scale - mapping from data attributes ( domain) to display (range)
    // e.g. 0 -> 0, 20 -> 0.2, 100 -> 1.12
    // e.g. 0 -> 500, 20 -> 400, 50 -> 250
    var svg = d3.select('svg');
    var rect = svg.selectAll("rect")
        .data(data) 
      .enter().append('rect')
      .attr('x', (d, i) => i * rectWid)
      .attr('y', d => height - d)
      .attr('width', rectWid)
      .attr('height', d => d)
      .attr('fill', d => d === 250 ? 'red' : 'blue')
      .attr('stroke', '#fff');
    
    console.log(rect.nodes());
​
  </script>
</body>
​
    