log bar

<!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>
    // Feel free to change or delete any of the code you see in this editor!
    
   	var margin = {left:100,right:20,top:50,bottom:20}
    
    var svg = d3.select("body").append("svg")
      .attr("width", 580)
      .attr("height", 500);
    
    var mydata = [
      {name:"a",value:100},
      {name:"b",value:50},
      {name:"c",value:10},
      {name:"d",value:5},
      {name:"e",value:0.8},
    ];
    
    var names = d3.map(mydata,function(d){
      return d.name;
    })
    
    var xScale = d3.scaleLog()
    	.domain([0.1,100])
    	.range([0,580-(margin.left+margin.right)]);
    
    var yScale = d3.scaleOrdinal()
    	.domain(names)
    	.range([0,500-(margin.top+margin.bottom)])
    
    svg.append("g")
    	.selectAll("rect")
    	.data(mydata)
    	.enter()
    	.append("rect")
    	.attr("y",function(d,i){
      return margin.top+(i * 20);
    })
    	.attr("width",function(d){return xScale(d.value)})
    .attr("height",17)
    	.attr("x",margin.left)
    	.attr("fill","black")
    
    svg.append("g")
    	.selectAll("text")
    	.data(mydata)
    	.enter()
    	.append("text")
    	.attr("y",function(d,i){
      return margin.top+(i * 20)+10;
    })
    	.attr("text-anchor","end")
    	.attr("x",margin.left-4)
    .text(function(d){return d.name})

var xAxis = d3.axisBottom()
    	.scale(xScale)
    	.ticks(20, ",.1s");
             
    svg.append("g").attr("transform","translate("+margin.left+","+(margin.top+100)+")")
    .call(xAxis)

</script>
</body>

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