D3 Examples - D3 bar chart without data-binding

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    rect {
      fill: white;
      stroke: black;
      stroke-width: 1;
    }
  </style>
</head>
​
<body>
  <script>
​
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500);
​
    var data = [22, 32, 21, 23, 10, 22, 11, 19, 30, 50];
    
    var y = d3.scaleLinear().domain([0, d3.max(data)]).range([0,150]);
    
    svg.selectAll("text").data(data).enter().append("text")
            .text(function(d){return d ;})
            .attr("y", 215)
            .attr("x", function(d,i) { return 74 + (i * 50) ; })
        .style("text-anchor", "middle");
    
    svg.selectAll("rect").data(data).enter()
            .append("rect")
        .attr("y", function(d) { return 200 - y(d); })
        .attr("x", function(d,i) { return 50 + (i * 50) ; })
        .attr("width", 47)
        .attr("height", function(d) { return y(d) } )
            .on("mouseover", function(d,i) {
                d3.select(this).style("fill","yellow")
    })
    
  </script>
</body>
​
    