如何使用JQuery获取文件的下载时间？

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

<a href="path/to/file.pdf" id="download-link">Download File</a>

$('#download-link').click(function() {
  var url = $(this).attr('href');
  $.ajax({
    type: 'HEAD',
    url: url,
    success: function(data, textStatus, request) {
      var fileSize = request.getResponseHeader('Content-Length');
      var lastModified = request.getResponseHeader('Last-Modified');
      var downloadTime = new Date().getTime();
      var fileSizeInKB = fileSize / 1024;
      
      // 在控制台输出文件大小和下载时间
      console.log('File Size: ' + fileSizeInKB + ' KB');
      console.log('Download Time: ' + downloadTime);
    }
  });
});