05_function.html 439 Bytes

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<!DOCTYPE html>
<html>

<head>

</head>

<body>
    <p id="demo"> Test P tag </p>


    <script type="text/javascript">
        function add() {
            var sum = 0;
            for (var i = 0, j = arguments.length; i < j; i++) {
                sum += arguments[i];
            }
            return sum;
        }
        var num = add(1,10);
        document.getElementById("demo").innerHTML = num;
    </script>
</body>

</html>