前端项目——日期格式中出现T如何转换格式？

function getList() {
  listWarn(queryParams).then(res => {
    let list = res.rows || [];
    tables.value = list;
    console.log(tables.value, 'tables.value');
    total.value = res.total;
    for (let i = 0; i < res.rows.length; i++) {
      // 转换开始时间数据格式
      if (tables.value[i].startTime) {
        var customTime = tables.value[i].startTime;
        tables.value[i].startTime = dateFunction(customTime); //2021-02-01 00:00:00
      }
      // 转换结束时间数据格式
      if (tables.value[i].endTime) {
        var customTimeLast = tables.value[i].endTime
        tables.value[i].endTime = dateFunction(customTimeLast); //2021-02-01 00:00:00
      }
      var customStatus = tables.value[i].processStatus
      tables.value[i].processStatus = statusFunction(customStatus)
    }
  });
}

//处理日期数据格式
function dateFunction(time) {
  var zoneDate = new Date(time).toJSON();
  var date = new Date(+new Date(zoneDate) + 8 * 3600 * 1000).toISOString().replace(/T/g, ' ').replace(/\.[\d]{3}Z/, '');
  return date;
}