An example for drawing an arrowhead at the intersection of a bezier curve and a circle using d3.js

The original unuglified source code is at https://github.com/hnakamur/d3.js-drag-bezier-curves-example/blob/395b4cd5f9b619a1354472cd0d29ebfa243177cb/app/index.js

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<!DOCTYPE html>
<head>
<meta charset='utf-8'>
</head>
<body>
<div id='example'></div>
<script src="bundle.js"></script>
</body>
</html>
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