Javascript对象抛出类型错误

我很难使用简单的javascript。我收到以下错误消息：

TypeError: tableKeyPerInd1.getTotal is not a function
tempHold = tableKeyPerInd1.getTotal();

根据该代码：

 tableKeyPerInd1 = new table("keyPerformanceIndicators");
 console.log(tableKeyPerInd1.table);
 tempHold = tableKeyPerInd1.getTotal();
 console.log(tempHold);
 function table(TableName){

  this.table=TableName;

  function getTotal()
  {
   this.runningTotal = 0;
   columns = new Array("Mon","Tue","Wed","Thu","Fri","Sat");
   for(var t=0; t<columns.length ;t+=1){
    this.runningTotal += $('SupplementaryExamKPI'+columns[t]) + $('DiabeticScreeningKPI'+columns[t])+$('LvaKPI'+columns[t]);
   }
  }
 }

tableKeyPerInd1=新表（“keyPerformanceIndicators”）；
console.log（tablekeyd1.table）；
tempHold=tableKeyPerInd1.getTotal（）；
控制台日志（临时保持）；
函数表（表名）{
this.table=TableName；
函数getTotal（）
{
this.runningTotal=0；
列=新数组（“周一”、“周二”、“周三”、“周四”、“周五”、“周六”）；
对于（var t=0；t而不是

function getTotal()

试试下面的方法

this.getTotal = function () {
    this.runningTotal = 0;
    columns = new Array("Mon","Tue","Wed","Thu","Fri","Sat");
    for(var t=0; t<columns.length ;t+=1){
        this.runningTotal += $('SupplementaryExamKPI'+columns[t]) +                         $('DiabeticScreeningKPI'+columns[t])+$('LvaKPI'+columns[t]);
    }
};

this.getTotal=函数（）{
this.runningTotal=0；
列=新数组（“周一”、“周二”、“周三”、“周四”、“周五”、“周六”）；
for（var t=0；t
getTotal
是一个私有函数。如果您将其更改为
this.getTotal=function（）{…
，您将能够调用它。谢谢Andy的款待
this.getTotal = function () {
    this.runningTotal = 0;
    columns = new Array("Mon","Tue","Wed","Thu","Fri","Sat");
    for(var t=0; t<columns.length ;t+=1){
        this.runningTotal += $('SupplementaryExamKPI'+columns[t]) +                         $('DiabeticScreeningKPI'+columns[t])+$('LvaKPI'+columns[t]);
    }
};