D3 Examples - slider

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<!DOCTYPE html>
  <head>
    <meta charset="utf-8">
    <script src="https://d3js.org/d3.v5.min.js"></script>
    <style>
      body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0;padding: 20px;}
      input{height: 20px}
    </style>
  </head>
​
  <body>
    <div>
        <input type="range" min="0" max="75" value="50" id="myRange"/>
    </div>
    <script>
      const svg = d3.select("body")
          .append("svg")
          .attr("width",160)
          .attr("height",160)
          .style("background-color","white")
​
      
      const colorScale = d3.scaleOrdinal()
          .domain([0,1,2,3,4])
          .range(
      [
        '#7fc97f',
        '#beaed4',
        '#fdc086',
        '#ffff99',
        '#386cb0'
      ])
​
      const circle = svg.append("circle")
          .attr("cx",80)
          .attr("cy",80)
          .attr("r",50)
          .attr("stroke","black")
          .attr("stroke-width",3)
          .attr("fill","#7fc97f")
      
    d3.select("#myRange").on("input", function(d){
            value = this.value
            circle.attr("r",value)
  })
      
    </script>
  </body>
</html>
    