空的Google WorkSheet导致错误：异常：范围中的列数必须至少为1

问题描述

我的Google App脚本将循环遍历所有WorkSheets以查找特定的字符串，并输出在其上找到的行和列，但是一旦我添加新的空WorkSheet，我就会收到错误消息“异常：列数范围必须至少为1。”我想对造成此问题的原因提供一些意见。谢谢。

function doForAllSheets(){
 var spreadsheet = SpreadsheetApp.getActive();
 var allSheets = spreadsheet.getSheets();
  
  allSheets.forEach(function(sheet){
    if(sheet.getSheetName() !== "Main"){
    sheet.activate();
 
    findValueInRange();
    
    }
  })
}
                     
function findValueInRange () {
  var ss = SpreadsheetApp.getActiveSheet(),theLastColumn = ss.getLastColumn(),theLastRow = ss.getMaxRows();

  //Returns a two dimensional array of both rows and columns
  var values = ss.getRange(1,1,theLastRow,theLastColumn).getValues();

  var i=0,rownum=0,thisRow,colvalue,whatToFind = "testserial",j=0;

  for(i=0;i<values.length;i++) {
    thisRow = values[i];

    for (j=1;j<thisRow.length;j++) {
      colvalue = thisRow[j];
      if (colvalue === whatToFind) {
        Logger.log("The string is in row: " + (i + 1) + " and column: " + (j+1));
      }
    }
  }
}

解决方法

像这样重写函数：

function findValueInRange () {
  var ss = SpreadsheetApp.getActiveSheet(),theLastColumn = ss.getLastColumn(),theLastRow = ss.getMaxRows();
  if( theLastColumn>0) {
  //Returns a two dimensional array of both rows and columns
  var values = ss.getRange(1,1,theLastRow,theLastColumn).getValues();

  var i=0,rownum=0,thisRow,colvalue,whatToFind = "testserial",j=0;

  for(i=0;i<values.length;i++) {
    thisRow = values[i];

    for (j=1;j<thisRow.length;j++) {
      colvalue = thisRow[j];
      if (colvalue === whatToFind) {
        Logger.log("The string is in row: " + (i + 1) + " and column: " + (j+1));
      }
    }
  }
  }
}