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【JavaScript】繰り返し処理を利用し、西暦2000年から本日までの西暦の年のみを全て表示

Last updated at Posted at 2021-05-07
<!DOCTYPE html>
<html lang="ja">
<head>
    <meta charset="UTF-8">
    <title>2000年から本日までの年だけを全て表示</title>
</head>
<body>
    <script>
        document.write('<p>' + '↓現在日時分秒を取得(new Dateメソッド)' + '</p>') // ←任意行
        var date = new Date();   
        document.write('<p>' + date + '</p>')                               // ←任意行
        document.write('<p>' + '↓現在日時から「年」のみを取得(getFullYeaメソッド)' + '</p>') // ←任意行
        var year = date.getFullYear(); 
        document.write('<p>' + year +'がyaerに入る' + '</p>') // ←任意行
        document.write('<p>' + '↓初期値を設定' + '</p>')      // ←任意行
        for (var i = 2000; i<= year; i++) {
        document.write('<p>' + i + '</p>')
        }
    </script>
</body>
</html>

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