javascript_practice/function_gugudan.html at master · beaver84/javascript_practice · GitHub

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<!DOCTYPE html>
<html lang="ko">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>구구단_함수</title>
</head>
<body>
    <h1>구구단_함수</h1>
    <script>

        function gugudan(x) {
            var ret = [];
            for (var i = 1; i <= 9; i++){
                ret[i] = x * i;
            }
            return ret;
        }

        function printResult(x, ret) {
            console.log(ret);
            document.write("<h2>" + x + "단</h2>");
            for (var i = 0; i < (ret.length-1); i++){
                document.write(x + " * " + (i+1) + " = " + ret[i+1] + "<br>");
            }
        }

        function main() {
            console.log("main 함수가 실행되었습니다.");
            for (var n = 2; n <= 9; n++ ){
                var result = gugudan(n);
                printResult(n, result);
            }
        }
        main();
    </script>
</body>
</html>