bar graph block

<!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>
		
    var width = 800;
    var height = 300;
    var city = 'New York';
    var margin = { top: 80, bottom: 20, left: 50, right: 20 }
    
    
    // dataset of city temperatures across time
    
		d3.tsv('data.tsv', (err, data) => {

// clean the data
      
      data.forEach(d => {
        d.date = d3.timeParse("%Y%m%d")(d.date);
        d.date = new Date(d.date); // x
        d[city] = ++d[city]; //y
      });
      
      
      // define scales to set x and y attributes (aka the ranges)
      
      var xExtent = d3.extent(data, d => d.date);
      var xScale = d3.scaleTime()
      	.domain(xExtent)
      	.range([margin.left, width - margin.right])

var yExtent = d3.extent(data, d => d[city])
      var yMax = d3.max(data, d => d[city])
      var yScale = d3.scaleLinear()
      	.domain([0, yMax])
      	.range([height - margin.bottom, margin.top]);
      
      var heightScale = d3.scaleLinear()
      	.domain([0, yMax])
      	.range([0, height - margin.top - margin.bottom])

// create the rectangles
      
      var svg = d3.select('svg');
      
      var rect = svg.selectAll('rect')
      	.data(data)
      	.enter().append('rect')
      	.attr('width', 1.5)
	      .attr('height', function(d) {
          return heightScale(d[city])
        })
      	.attr('x', function(d) { return xScale(d.date) })
      	.attr('y', function(d) { return yScale(d[city])})
      	.attr('fill', 'blue')
      	.attr('stroke', 'white');
      
      	// define axis and append to svg
      	
      var xAxis = d3.axisBottom()
      	.scale(xScale)
//       	.tickFormat(d => d3.timeFormat('%b %Y')(d))
      	.tickFormat(d3.timeFormat('%b %Y')); // same as above
      var yAxis = d3.axisLeft()
      	.scale(yScale)
      
      svg.append('g')
      	.attr('transform', 'translate(' + [0, height - margin.bottom] + ')')
      	.call(xAxis)
      svg.append('g')
      	.attr('transform', 'translate(' + [margin.left, 0] + ')')
      	.call(yAxis)
    });

</script>
</body>

https://d3js.org/d3.v4.min.js