我想计算我的卡的总价，根据下面的公式价格单位 * qty单位每行并在最后有卡的总价
这是我的模型

export class CdmdetailModel{
idref!:string;
designation!:string;
qte!:number;
price!:number;
reduction!:number;
puht!:number
 }

在我车里，我有一张产品清单

detailItem: CdmdetailModel[] = [];

这里是我在我的detailItem卡中添加的项目

addToCart() {
let lcom = new  
CdmdetailModel(this.refech,this.designation,this.qteech,this.priceech,this.reductionech)
this.detailItem.push(lcom)
this.toastrService.showSuccess('Ajouté au commande')
this.addbtn=false 
this.clear()  
this.totalQuantity = this.detailItem.length
this.clculPritotal1()
}

我创建了两个方法来尝试用这个方法获得卡片的总价值，
1.Method

clculPritotal(){
  for (let index = 0; index < this.detailItem.length; index++) {
   this.totalPriceCalcul.push(this.detailItem[index].price * this.detailItem[index].qte )
  }
  const  reducer = (accumulator:any,currentValue:any)=>accumulator+currentValue;
   this.totprice = this.totalPriceCalcul.reduce(reducer,0)
   console.log('Tot method 1', this.totprice )
}

2.mtehod

clculPritotal1(){
  this.detailItem.map((lc)=>{
    this.totprice += lc.price*lc.qte
    console.log('Tot method 2', this.totprice )
  })
}

有人能帮帮我吗？