javascript - 从字符串中删除小数

Question

我试图了解如何删除小数。我已经尝试过 Math.trunc() 但它似乎永远不会删除。 Logger.log(esValues.length) 打印 500.0，我尝试添加 var removeDecimal = Math.trunc(esValues.length) 然后打印removeDecimal，但我仍然得到 500.0

  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var es = ss.getSheetByName("School1");
  var ms = ss.getSheetByName("School2");
  var hs = ss.getSheetByName("School3");
  var esValues = es.getDataRange().getValues();
  var counterDell = 0;
  var counterHP = 0;
  //var esValues = es.getRange('A:C').getValues();
  Logger.log(esValues.length); //This prints 500.0, Also tried adding here Logger.log(Math.trunc(esValues.length))
  for (var i = 0; i < esValues.length; i++) {
    var data = esValues[i];
    var first = data[1];
    var last = data[0];
    var middle = data[2];
    var studentid = data[3];
    var device = data[4];
    if (device.includes("Dell")) {
      counterDell++;
    } else if (device.includes("HP")) {
      counterHP++;
    }

  }
  Logger.log(`Dell count is ${counterDell}`)
  Logger.log(`Hp count is ${counterHP}`)
}

Answer 1

Logger.log(esValues.length.split('.')[0])

将小数分成整数部分和小数部分，然后丢弃小数部分。