D3 Examples - curran class ex 1

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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; }
  </style>
</head>
​
<body>
  <script>
    var width = 960;
    var height = 500;
    var svg = d3.select("body").append("svg")
      .attr("width", width)
      .attr("height", height);
​
    
    //From July 2005 through June 2015.
    var monaData = [
      {
        name: "total with extremist connection",
        value: 279
      },
      {
        name: "right-wing extremism",
        value: 260
      },
      {
        name: "white supremacists",
        value: 215
      }
    ]
​
    var margin = {
      left: 100, 
      right: 100,
      top: 100,
      bottom: 100
    }
    
    var innerWidth = width - margin.left - margin.right;
        var innerHeight = height - margin.top - margin.bottom;    
    
    var xValue = d => d.value;
    var yValue = d => d.name;
    
    var xScale = d3.scaleLinear()
    .domain([0, d3.max(monaData, d => d.value)])
    .range([0, innerWidth]);
    
    var yScale = d3.scaleBand()
    .domain(monaData.map(d => d.name))
    .range([innerHeight, 0])
    .padding(4);
    
    svg.selectAll('rect').data(monaData)
        .enter().append('rect')
        .attr('x', d => xScale(xValue(d)))
        .attr('y', d => yValue(d))
        .attr('width', d => xScale(xValue(d)))
        .attr('height', yScale.bandwidth())
        .attr('fill', 'black')
​
  </script>
</body>
​
    