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<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <title>Add function</title>

</head>

<body>

  <h1>Function demo</h1>

  <p>Open DevTools Console to see the output.</p>

  <script>

    function add(a, b) {

      return a + b;

    }



    console.log("Sum =", add(3, 5));

  </script>

</body>

</html>

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JavaScript Introduction — Simple Function