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<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Closures</h1>
<p>Counting with a local variable.</p>
<p id="demo">0</p>
<script>
  document.getElementById("demo").innerHTML = add();
  function add() {
    let counter = 0;
    function plus() { counter += 1; }
    plus();
    return counter;
  }
</script>
</body>
<!-- /js/tryit.asp?filename=tryjs_function_closures4 Thu, 06 Feb 2025 19:15:32 GMT -->
</html>