将多个Sheetname传递到数组Google应用程序脚本无法处理时间戳函数

var sheets = SpreadsheetApp.getActiveSpreadsheet().getSheets();
var sheetNames = [];
for (var i = 0; i < sheets.length; i++) {
  sheetNames.push(sheets[i].getName());
}

var timestamp = new Date();
var formattedTimestamp = Utilities.formatDate(timestamp, "GMT", "yyyy-MM-dd HH:mm:ss");

var sheetData = [];
for (var i = 0; i < sheetNames.length; i++) {
  var data = {
    sheetName: sheetNames[i],
    timestamp: Utilities.formatDate(new Date(), "GMT", "yyyy-MM-dd HH:mm:ss")
  };
  sheetData.push(data);
}