opentutorials-web2_javascript/ex9.html at main · kkys00/opentutorials-web2_javascript · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>Function</h1>
    <h2>Basic</h2>
    <ul>
        <script>
            function two(){
                document.write('<li>2-1</li>');
                document.write('<li>2-2</li>');
            }
            document.write('<li>1</li>');
            two();
            document.write('<li>3</li>');
            two();
        </script>
    </ul>
    <h2>Parameter & Argument</h2>
    <script>
        function sum(first, second){
            document.write(first+second+'<br>');
        }
        sum(2,3);
        sum(3,4);
    </script>
    <h2>Return</h2>
    <script>
        function sum2(left, right){
            return left+right;
        }
        document.write(sum2(2,3)+'<br>');
        document.write('<div style="color:red">'+sum2(2,3)+'</div>');
        document.write('<div style="font-size:3rem;">'+sum2(2,3)+'</div>');
    </script>
</body>
</html>