Swapping Bars - d3 with TypeScript

Just a simple test of visualizing some simple data with d3 using TypeScript

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•<!DOCTYPE html>
​
<html>
<head>
    <meta charset="utf-8" />
    <title>Swapping Bars</title>
    <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script src="main.js"></script>
</head>
<body style="background:black">
    <div id="content"></div>
</body>
</html>
​
    

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js