js去除日期时间的T和毫秒的代码介绍

//时间格式：2022-07-07T06:12:32.45
function formatdate(dateTime) {
  if (!dateTime && typeof dateTime !== 'number') {
  	return '';
  }
  var localTime = '';
  dateTime = new Date(dateTime).getTime();
  const offset = (new Date()).getTimezoneOffset();
  localTime = (new Date(dateTime - offset * 60000)).toISOString();
  localTime = localTime.substr(0, localTime.lastIndexOf('.'));
  localTime = localTime.replace('T', ' ');
  return localTime;
}
//输出结果：2022-07-07 06:12:32