如何为现有日期显示JavaScript代码添加H1、加粗及居中格式？

下面是添加了H1标题、加粗、居中格式的代码，直接嵌入网站即可使用：

<h1 style="text-align: center;">
  <script type="text/javascript">
    var d=new Date();
    var weekday=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday", "Saturday");
    var monthname=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
    document.write("<strong>" + weekday[d.getDay()] + " " + d.getDate() + ". " + monthname[d.getMonth()] + " " + d.getFullYear() + "</strong>");
  </script>
</h1>

格式说明： #

• <h1> 标签实现H1标题效果
• style="text-align: center;" 让标题整体居中显示
• <strong> 标签将日期文本设置为加粗样式
• 把原来多次document.write合并成一次，让代码更简洁

内容的提问来源于stack exchange，提问作者Nancy Churchill