D3 Examples - test d3 avec data scale

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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; }
  </style>
</head>
​
<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
    var data = [10, 20, 100, 150, 80, 40, 70, 30, 150, 200, 40, 300]
    
    var y = d3.scaleLinear()
            .domain([d3.min(data),d3.max(data)])
            .range([0, 250]);
    
    var x = d3.scaleBand()
            .domain(d3.range(data.length))
            .range([0,400]); 
    
    console.log(x(1), x.bandwidth())
    
    var color = d3.scaleLinear()
        .domain(d3.extent(data))
        .range(["blue", "red"])
    
      svg.selectAll("rect").data(data).enter()
        .append("rect")
      .attr("y", function(d,i) {return 400 -y(d);})
      .attr("x", function(d,i) {return x(i)})
      .attr("height", function(d,i) {return y(d);})
      .attr("width", x.bandwidth()-5)
        .style("fill", function(d,i) {return color(d);})
        .style("stroke", "black")
        .style("stroke-width", "2px");
      
   
    
​
  </script>
</body>
​
    