JavaScript代码在IE 10中不起作用

我已经编写了计算预订价格的代码。此代码适用于Chrome、Firefox、Edge。。。但它在IE（10）中不起作用。它根本不会触发，因为即使是最开始的警报也不会显示。我允许使用DirectX，并且在安全选项中将安全设置为最低可能选项。我不知道这是什么原因

要进行实时测试，请填写表单的第一页，在第二页，选择到达日期和离开日期后应立即启动脚本：

这是触发它的事件：

<input type="text" name="aankomstdatum" id="aankomstdatum" onchange="aankomstdatumInput();berekenPrijs()">

这是JavaScript代码：

var aankomstDatumDate;
var vertrekDatumDate;
var spans;
var totaalPersonen;

alert("IE test");

//Get arrival date from datepicker + aantal kinderen & volwassenen
function aankomstdatumInput() {
var aankomstDatum = document.getElementById("aankomstdatum").value;
//alert(aankomstDatum);
document.getElementById("aankomst").innerHTML = aankomstDatum;
var parts = aankomstDatum.split('-');
aankomstDatumDate = new Date(parts[2],parts[1]-1,parts[0]);
//alert(aankomstDatumDate);
document.getElementById("aankomstDate").innerHTML = aankomstDatumDate;
//get aantal kinderen en volwassenen
spans = document.querySelectorAll('#aantallen span');
totaalPersonen = Array.from(spans).reduce((sum, spanElm) => sum + Number(spanElm.textContent), 0);
//alert(totaalPersonen);
}

//Get departure date from datepicker
function vertrekdatumInput() {
vertrekDatum = document.getElementById("vertrekdatum").value;
//alert(vertrekDatum);
document.getElementById("vertrek").innerHTML = vertrekDatum;
var parts2 = vertrekDatum.split('-');
vertrekDatumDate = new Date(parts2[2],parts2[1]-1,parts2[0]);
document.getElementById("vertrekDate").innerHTML = vertrekDatumDate;
}

//fire function onchange and get the arrival date and departure date and make the array
function berekenPrijs() {
//var aankomst = new Date("November 25, 2017");
//var vertrek = new Date("December 2, 2017");
//alert(aankomstDatumDate);
//alert(vertrekDatumDate);
//alert(aankomst);
var maand = aankomstDatumDate.getMonth();
var verblijfDagen = [];
var day = 1000*60*60*24;
var diff = (vertrekDatumDate.getTime()- aankomstDatumDate.getTime())/day;

//calculate all seperate days from arrival date to departure date and put them in an array   
for(var i=0;i<=diff; i++)
{
   var xx = aankomstDatumDate.getTime()+day*i;
   var yy = new Date(xx);
   var zz = (yy.getDate()+"-"+(yy.getMonth()+1)+"-"+yy.getFullYear());
   var parts = zz.split('-');
   var zzDate = new Date(parts[2],parts[1]-1,parts[0]);
   //check if this date is a saturday and in the correct Date structure && zzDate mag niet gelijk zijn aan vertrekdatum of laatst
   if(zzDate.getDay() === 0) verblijfDagen.push(zzDate);
   //alert(verblijfDagen);
}
//check if all the days are in the array
//alert (verblijfDagen);

//declare the period of the different seasons and the daily cost rate during this season 
var December2019 = {startDate: new Date(2019,12-1,1), endDate: new Date(2019,12-1,31), costRate: 550};
var November2019 = {startDate: new Date(2019,11-1,1), endDate: new Date(2019,11-1,30), costRate: 550};
var Oktober2019 = {startDate: new Date(2019,10-1,1), endDate: new Date(2019,10-1,31), costRate: 690};
var September2019 = {startDate: new Date(2019,9-1,1), endDate: new Date(2019,9-1,30), costRate: 1190};
var Augustus2019 = {startDate: new Date(2019,8-1,1), endDate: new Date(2019,8-1,31), costRate: 1690};
var Juli2019 = {startDate: new Date(2019,7-1,1), endDate: new Date(2019,7-1,31), costRate: 1690};
var Juni2019 = {startDate: new Date(2019,6-1,1), endDate: new Date(2019,6-1,30), costRate: 1190};
var MeiEind2019 = {startDate: new Date(2019,5-1,15), endDate: new Date(2019,5-1,31), costRate: 1190};
var MeiBegin2019 = {startDate: new Date(2019,5-1,1), endDate: new Date(2019,-1,14), costRate: 840};
var April2019 = {startDate: new Date(2019,4-1,1), endDate: new Date(2019,4-1,30), costRate: 750};
var Maart2019 = {startDate: new Date(2019,3-1,1), endDate: new Date(2019,3-1,31), costRate: 550};
var Februari2019 = {startDate: new Date(2019,2-1,1), endDate: new Date(2019,2-1,30), costRate: 550};
var Januari2019 = {startDate: new Date(2019,1-1,1), endDate: new Date(2019,1-1,31), costRate: 550};
var December2018 = {startDate: new Date(2018,12-1,1), endDate: new Date(2018,12-1,31), costRate: 550};
var November2018 = {startDate: new Date(2018,11-1,1), endDate: new Date(2018,11-1,30), costRate: 550};
var Oktober2018 = {startDate: new Date(2018,10-1,1), endDate: new Date(2018,10-1,31), costRate: 690};
var September2018 = {startDate: new Date(2018,9-1,1), endDate: new Date(2018,9-1,30), costRate: 1190};
var Augustus2018 = {startDate: new Date(2018,8-1,1), endDate: new Date(2018,8-1,31), costRate: 1690};
var Juli2018 = {startDate: new Date(2018,7-1,1), endDate: new Date(2018,7-1,31), costRate: 1690};
var Juni2018 = {startDate: new Date(2018,6-1,1), endDate: new Date(2018,6-1,30), costRate: 1190};
var MeiEind2018 = {startDate: new Date(2018,5-1,15), endDate: new Date(2018,5-1,31), costRate: 1190};
var MeiBegin2018 = {startDate: new Date(2018,5-1,1), endDate: new Date(2018,-1,14), costRate: 840};
var April2018 = {startDate: new Date(2018,4-1,1), endDate: new Date(2018,4-1,30), costRate: 750};
var Maart2018 = {startDate: new Date(2018,3-1,1), endDate: new Date(2018,3-1,31), costRate: 550};
var Februari2018 = {startDate: new Date(2018,2-1,1), endDate: new Date(2018,2-1,30), costRate: 550};
var Januari2018 = {startDate: new Date(2018,1-1,1), endDate: new Date(2018,1-1,31), costRate: 550};
var December2017 = {startDate: new Date(2017,12-1,1), endDate: new Date(2017,12-1,31), costRate: 550};
var November2017 = {startDate: new Date(2017,11-1,1), endDate: new Date(2017,11-1,30), costRate: 550};
var allSeasons = [November2017, December2017, Januari2018, Februari2018, Maart2018, April2018, MeiBegin2018, MeiEind2018, Juni2018, Juli2018, Augustus2018, September2018, Oktober2018, November2018, December2018, Januari2019, Februari2019, Maart2019, April2019, MeiBegin2019, MeiEind2019, Juni2019, Juli2019, Augustus2019, September2019, Oktober2019, November2019, December2019];
//check if this date is in the correct Date structure
//alert(November2017.startDate instanceof Date);
//check if the date is correct
//alert (November2017.startDate);

var totalPrice = 0;
for (var u = 0; u < verblijfDagen.length; u++) {
   for(var j = 0; j < allSeasons.length; j++) {
    if (verblijfDagen[u] >= allSeasons[j].startDate && verblijfDagen[u] <= allSeasons[j].endDate) {
      //Add costRate of this date to totalPrice
      totalPrice = totalPrice + allSeasons[j].costRate;
    }
  }
}

var totalPriceFinal = totalPrice + (totaalPersonen*10);
var totalVoorschot = totalPriceFinal/100*50;
var totalRestBedrag = totalPriceFinal/100*50;
//alert (totalVoorschot);
//alert (totalRestbedrag);

document.getElementById("totaalPrijsLabel").innerHTML = totalPriceFinal;
document.getElementById("totaalPrijs").value = totalPriceFinal;
document.getElementById("totaalVoorschot").value = totalVoorschot;
document.getElementById("totaalRestbedrag").value = totalRestbedrag;
};

var aankomstDatumDate；
var vertrekDatumDate；
var跨度；
var totaalPersonen；
警报（“IE测试”）；
//从datepicker+aantal幼儿园和volwassenen获取到达日期
函数aankomstdatumInput（）{
var aankomstDatum=document.getElementById（“aankomstDatum”）.value；
//警报（aankomstDatum）；
document.getElementById（“aankomst”）.innerHTML=aankomstDatum；
var parts=aankomstDatum.split（'-'）；
aankomstDatumDate=新日期（部分[2]，部分[1]-1，部分[0]）；
//警报（aankomstDatumDate）；
document.getElementById（“aankomstDate”）.innerHTML=aankomstDatumDate；
//去沃瓦森的安塔尔幼儿园
span=document.querySelectorAll（'aantallen span'）；
totaalPersonen=Array.from（span）.reduce（（sum，spanElm）=>sum+Number（spanElm.textContent），0）；
//警报（totaalPersonen）；
}
//从datepicker获取出发日期
函数vertrekdatumInput（）{
vertrekDatum=document.getElementById（“vertrekDatum”）.value；
//警报（vertrekDatum）；
document.getElementById（“vertrek”）.innerHTML=vertrekDatum；
var parts2=vertrekDatum.split（'-'）；
vertrekDatumDate=新日期（parts2[2]，parts2[1]-1，parts2[0]）；
document.getElementById（“vertrekDate”）.innerHTML=vertrekDatumDate；
}
//fire函数onchange，获取到达日期和离开日期，并生成数组
函数berekenPrijs（）{
//var aankomst=新日期（“2017年11月25日”）；
//var vertrek=新日期（“2017年12月2日”）；
//警报（aankomstDatumDate）；
//警报（vertrekDatumDate）；
//警报（aankomst）；
var maand=aankomstDatumDate.getMonth（）；
var verblijfDagen=[]；
var日=1000*60*60*24；
var diff=（vertrekDatumDate.getTime（）-aankomstDatumDate.getTime（））/天；
//计算从到达日期到出发日期的所有独立天数，并将它们放入一个数组中
对于（var i=0；i=allSeasons[j]。startDate&&verblijfDagen[u]我猜IE10不支持您的
ECMA 6箭头，在这一行：

Array.from(spans).reduce((sum, spanElm) => sum + Number(spanElm.textContent), 0);

我猜IE10不支持您的
ECMA 6箭头
，这一行：

Array.from(spans).reduce((sum, spanElm) => sum + Number(spanElm.textContent), 0);

什么是
结束日期：新日期（2018，-1,14）
？它是否打算有
，-1，
？更重要的是，我们究竟如何知道什么“不起作用”？一个错误？一个不正确的结果？它根本不起任何作用。我添加了一个测试警报，应该在页面加载时触发，甚至没有显示。这个-1是有意的。什么是
endDate:new Date（2018，-1,14）
？它打算有
，-1，
？更重要的是，我们究竟如何知道什么“不起作用”？一个错误？一个不正确的结果？它根本不起任何作用。我添加了一个测试警报，应该在页面加载时触发，甚至没有显示。这个-1是故意的。但这能解释为什么即使测试警报也不能工作，因为它应该在页面加载后立即触发吗？是的。当IE触发该代码时，它会面临“语法错误”所以整个脚本都不会运行。但是这是否解释了为什么即使测试警报也不能工作，因为它应该在加载页面时触发？是的。当IE触发该代码时，它将面临“语法错误”，因此整个脚本都不会运行。