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<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 id="root" height="150"></svg>
<script>
let graphData = [20, 5,100, 49, 22, 67, 8, 56,19];
let graph = d3.select('#root')
.selectAll('rect')
.data(graphData).enter().append('rect')
.attr("height", (d) => { return d })
.attr("width", "20")
.attr('x', (d, i) => { return (i*25) })
.attr('y', (d, i) => { return (150-d) })
.attr("fill", "red")
</script>
</body>
https://d3js.org/d3.v4.min.js