D3 Examples - Austin TX Average Temperature (OCT 2011

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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>
    const city = 'Austin';
    const width = 800;
    const height = 300;
    const margin = { top: 20, bottom: 20, left: 20, right: 20 } 
    
    // dataset of city temperatures across time
    d3.tsv('data.tsv', (err, data) => {
      // clean the data
      data.forEach(d => {
//         console.log(d.date)
        d.date = d3.timeParse("%Y%m%d")(d.date);
//         console.log(d.date)
        d.date = new Date(d.date); // x
        d[city] = +d[city]; // y
      });   
      
      // Scales
      const xExtent = d3.extent(data, d => d.date);
      const yExtent = d3.extent(data, d => d[city]);
      const xScale = d3.scaleTime()
        .domain(xExtent)
        .range([margin.left, width - margin.right]);
      const yScale = d3.scaleLinear()
        .domain(yExtent)
        .range([height - margin.bottom, margin.top]);
      
      const svg = d3.select('svg');
      const rect = svg.selectAll('rect')
        .data(data)
        .enter().append('rect')
        .attr('width', 2) 
        .attr('height', d => height - yScale(d[city]))
        .attr('x', d => xScale(d.date))
        .attr('y', d => yScale(d[city]))
        .attr('stroke', '#fff')
        .attr('fill', d => {
          let temp = d[city];
          switch(true) {
            case temp < 40:
                return '#1D4E89'
            case temp < 50:
                return '#00B2CA'
            case temp < 60:
                return '#7DCFB6'
            case temp < 70:
                return '#FBD1A2'
            case temp < 80:
                return '#F79256'
            default: 
                return '#F71C00'
          }
        });
      
      const xAxis = d3.axisBottom()
        
        .scale(xScale);
      const yAxis = d3.axisLeft()
        .scale(yScale);
      
      svg.append('g')
        .attr('transform', `translate(0, ${height})`)
        .call(xAxis)
      
      svg.append('g')
        .attr('transform', `translate(${margin.left}, 0)`)
        .call(yAxis)
 
      });
  </script>
</body>
​
​
    