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<!doctype html>
<html lang="en">
<head>
<title>JavaScript Patterns</title>
<meta charset="utf-8">
</head>
<body>
<script>
function next() {
var count = 1;
next = function () {
return ++count;
};
return count;
}
console.log(next()); // 1
console.log(next()); // 2
</script>
</body>
</html>
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