D3 Examples - Line chart with tipsy tooltips

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<!DOCTYPE html>
<!-- Based on url https://natescodevault.com/js/line/ -->
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>D3 Line Chart</title>
    <link rel="stylesheet" type="text/css" href="d3LineChart.css">
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" type="text/javascript"></script>
    <script src="https://d3js.org/d3.v3.min.js" type="text/javascript"></script>
    <script type="text/javascript" src="jquery.tipsy.js"></script>
    <link href="tipsy.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <button id="button">Redraw</button>
    <div id="chart"></div>
    <script src="d3LineChart.js" type="text/javascript"></script>
</body></html>
    