shapes: line

<!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>
  <svg></svg>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    		var width = 800;
		var height = 300;
		var margin = { top: 20, bottom: 20, left: 20, right: 20 };
    var data = [
      {date: new Date(2007, 3, 24), value: 93.24},
      {date: new Date(2007, 3, 25), value: 95.35},
      {date: new Date(2007, 3, 26), value: 98.84},
      {date: new Date(2007, 3, 27), value: 99.92},
      {date: new Date(2007, 3, 30), value: 99.80},
      {date: new Date(2007, 4,  1), value: 99.47},
    ];

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.value)
		var yScale = d3.scaleLinear()
				.domain(yExtent)
				.range([height - margin.bottom, margin.top])
    var line = d3.line()
      .x((d) => { return xScale(d.date); })
      .y((d) => { return yScale(d.value); });

d3.select('svg')
      .append('path')
      .attr('d', line(data));

</script>
</body>

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