echoes/test.html at master · uplne/echoes · GitHub

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<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>test</title>
</head>
<body>
	<button id="test">create a leak</button>
	<script type="text/javascript">
	function  closureDemoParentFunction(paramA)
	{
   		var a = paramA;
   		return function closureDemoInnerFunction (paramB)
   		{
     			console.log( a +" "+ paramB);
   		};
	};
	// var x = closureDemoParentFunction("outer x");
	// x("inner x");

	var leaks = [];
	function createLeak(ev){
		leaks.push(closureDemoParentFunction("outer " + Math.floor(Math.random()*1000)));
	}
	document.getElementById('test').addEventListener(
		'click', createLeak);
	</script>
</body>
</html>