User: beginSocket(ws: Client): void {
    const facilityData: IZSendAlgoFacilityInfo[] = [];
    if (this.facilitiesData.length > 0) {
      this.facilitiesData.forEach((element: IZAlgoFacility) => {
        if (element.zexOperationUnitTms[0] && element.zexFacUnitCosts[0])
          facilityData.push({
            facilityId: element.facUnitCd,
            name: element.facUnitNm,
            address: element.zexSrvcLoc.srvcAddr1,
            openTm: element.zexOperationUnitTms[0].unitDowOpenTm.replace(':', ''),
            closeTm: element.zexOperationUnitTms[0].unitDowCloseTm.replace(':', ''),
            tippingFee: element.zexFacUnitCosts[0].unitCostDispTipFees,
            costPerTon: element.zexFacUnitCosts[0].unitCostDispPerTon,
            srvtTm: element.zexOperationUnitTms[0].srvcUnitTm,
            materialTypId:
              element.zexFacUnitCosts[0].materialTypId == 0 ? null : element.zexFacUnitCosts[0].materialTypId
          });
      });
    }

    const vehiclesData: IZSendAlgoVehicleInfo[] = [];
    if (this.rvData.length > 0) {
      this.rvData.forEach((element: IZAlgoVehicleunit) => {
        vehiclesData.push({
          vehicleId: element.zexVehUnit.vehId,
          size: element.zexVehUnit.vehSizeVal,
          netWeight: element.zexVehUnit.vehNetWtVal,
          compactionRatio: element.zexVehUnit.vehCompRatioVal,
          lunchStartTm: element.zexVehUnit.vehLunchStartTm,
          lunchEndTm: element.zexVehUnit.vehLunchStopTm,
          lunchDuration: element.zexVehUnit.vehLunchTm,
          vehStartTm: element.zexVehUnit.vehStartTm,
          vehStopTm: element.zexVehUnit.vehStopTm,
          vehStartLocId: element.zexVehUnit.vehStartLocId,
          vehEndLocId: element.zexVehUnit.vehEndLocId,
          dow: element.dow
        } as IZSendAlgoVehicleInfo);
      });
    }
    const containerList: { qty: number; size: number }[] = [];
    if (this.containerData.length > 0) {
      this.containerData.forEach((element: IZContainerInfo) => {
        containerList.push({ qty: element.contQty, size: element.contSize });
      });
    }

    let routeConstraintsData: IZRouteConstraints = {} as IZRouteConstraints;
    if (this.routeData[0]) {
      routeConstraintsData = {
        routeBeginTm: this.routeData[0].unitDowOpenTm?.replace(':', ''),
        routeEndTime: this.routeData[0].unitDowCloseTm?.replace(':', ''),
        maxYards: 999999999,
        maxWeight: 999999999,
        maxLifts: 999999,
        maxHours: 15,
        costPerHour: this.routeData[0].costPerHr,
        travelTmFactor: this.routeData[0].odTtmFacVal,
        preTripTm: this.routeData[0].preTripTmSec,
        postTripTm: this.routeData[0].postTripTmSec,
        lunchStartTm: this.routeData[0].lunchStartTm.replace(':', ''),
        lunchEndTm: this.routeData[0].lunchStopTm.replace(':', ''),
        lunchDuration: this.routeData[0].lunchTmSec
      };
    }
    const data: IZCTSAlgoRequest = {
      algType: this.reportName == 'Disposal' ? 'DISPOSAL' : (algoTypeLut[this.commonService.appCode]?.CTS ?? ''),
      userId: this._http.usrId,
      accountId: this._http.accountId,
      opArea: this.opsUnit,
      routeType: this.routeType,
      routes: [],
      algoRequestCommonParam: { stops: this.stops, lifts: this.lifts, weight: this.weight, volume: this.yards },
      routeConstraints: routeConstraintsData,
      facilities: facilityData,
      vehicleList: vehiclesData,
      containerList,
      isRequestAgain: this.isReqForSmAlgAgnRn,
      //ZRP-2418 - Added below params for Cost To Serve to use DLO for cost and time calculation
      dbgCollapseOption: 2,
      optimizeFlag: this.optimizedBy,
      minPctFull: 10,
      maxPctAllowance: 0,
      honorCustomerTimeWindows: 'Y',
      honorLoadNo: 'N',
      mustDisposalFlag: 'N',
      clusterByLoad: 'Y',
      keepRouteNo: 'Y',
      keepSequenceNo: 'Y'
    };
    if (this.reportName == 'Disposal' && this.reportTypeInfo.type == 'RT') {
      data.dowList = [];
    } else {
      if (this.dow.length) {
        data.dowList = this.dow;
      }
    }
    this.startTime = new Date();
    this.refreshTime = this.startTime;
    const secs: number = this.commonService.getTimeDifferenceInSeconds(this.refreshTime, this.startTime);
    this.duration = this._http.convertSecsIntoMins(secs);
    ws.send('/app/startJob', {}, JSON.stringify(data));
  }

make one change in this our element.zexFacUnitCosts[0] contains multiple onject i want to loop over those and add entry for each object in facilitydata and push
Assistant: To modify the existing code so that it loops over the multiple objects in `element.zexFacUnitCosts` and adds an entry for each object in `facilityData`, you will need to change the relevant section of the `beginSocket` method. Here's how you can do this:

1. Remove the check for `element.zexFacUnitCosts[0]`.
2. Loop through `element.zexFacUnitCosts` and push an entry into `facilityData` for each object present.

Here's the adjusted code:

```typescript
beginSocket(ws: Client): void {
    const facilityData: IZSendAlgoFacilityInfo[] = [];
    if (this.facilitiesData.length > 0) {
        this.facilitiesData.forEach((element: IZAlgoFacility) => {
            if (element.zexOperationUnitTms[0] && element.zexFacUnitCosts.length > 0) {
                element.zexFacUnitCosts.forEach(cost => {
                    facilityData.push({
                        facilityId: element.facUnitCd,
                        name: element.facUnitNm,
                        address: element.zexSrvcLoc.srvcAddr1,
                        openTm: element.zexOperationUnitTms[0].unitDowOpenTm.replace(':', ''),
                        closeTm: element.zexOperationUnitTms[0].unitDowCloseTm.replace(':', ''),
                        tippingFee: cost.unitCostDispTipFees,
                        costPerTon: cost.unitCostDispPerTon,
                        srvtTm: element.zexOperationUnitTms[0].srvcUnitTm,
                        materialTypId: cost.materialTypId == 0 ? null : cost.materialTypId
                    });
                });
            }
        });
    }

    const vehiclesData: IZSendAlgoVehicleInfo[] = [];
    if (this.rvData.length > 0) {
        this.rvData.forEach((element: IZAlgoVehicleunit) => {
            vehiclesData.push({
                vehicleId: element.zexVehUnit.vehId,
                size: element.zexVehUnit.vehSizeVal,
                netWeight: element.zexVehUnit.vehNetWtVal,
                compactionRatio: element.zexVehUnit.vehCompRatioVal,
                lunchStartTm: element.zexVehUnit.vehLunchStartTm,
                lunchEndTm: element.zexVehUnit.vehLunchStopTm,
                lunchDuration: element.zexVehUnit.vehLunchTm,
                vehStartTm: element.zexVehUnit.vehStartTm,
                vehStopTm: element.zexVehUnit.vehStopTm,
                vehStartLocId: element.zexVehUnit.vehStartLocId,
                vehEndLocId: element.zexVehUnit.vehEndLocId,
                dow: element.dow
            } as IZSendAlgoVehicleInfo);
        });
    }

    const containerList: { qty: number; size: number }[] = [];
    if (this.containerData.length > 0) {
        this.containerData.forEach((element: IZContainerInfo) => {
            containerList.push({ qty: element.contQty, size: element.contSize });
        });
    }

    let routeConstraintsData: IZRouteConstraints = {} as IZRouteConstraints;
    if (this.routeData[0]) {
        routeConstraintsData = {
            routeBeginTm: this.routeData[0].unitDowOpenTm?.replace(':', ''),
            routeEndTime: this.routeData[0].unitDowCloseTm?.replace(':', ''),
            maxYards: 999999999,
            maxWeight: 999999999,
            maxLifts: 999999,
            maxHours: 15,
            costPerHour: this.routeData[0].costPerHr,
            travelTmFactor: this.routeData[0].odTtmFacVal,
            preTripTm: this.routeData[0].preTripTmSec,
            postTripTm: this.routeData[0].postTripTmSec,
            lunchStartTm: this.routeData[0].lunchStartTm.replace(':', ''),
            lunchEndTm: this.routeData[0].lunchStopTm.replace(':', ''),
            lunchDuration: this.routeData[0].lunchTmSec
        };
    }

    const data: IZCTSAlgoRequest = {
        algType: this.reportName == 'Disposal' ? 'DISPOSAL' : (algoTypeLut[this.commonService.appCode]?.CTS ?? ''),
        userId: this._http.usrId,
        accountId: this._http.accountId,
        opArea: this.opsUnit,
        routeType: this.routeType,
        routes: [],
        algoRequestCommonParam: { stops: this.stops, lifts: this.lifts, weight: this.weight, volume: this.yards },
        routeConstraints: routeConstraintsData,
        facilities: facilityData,
        vehicleList: vehiclesData,
        containerList,
        isRequestAgain: this.isReqForSmAlgAgnRn,
        // ZRP-2418 - Added below params for Cost To Serve to use DLO for cost and time calculation
        dbgCollapseOption: 2,
        optimizeFlag: this.optimizedBy,
        minPctFull: 10,
        maxPctAllowance: 0,
        honorCustomerTimeWindows: 'Y',
        honorLoadNo: 'N',
        mustDisposalFlag: 'N',
        clusterByLoad: 'Y',
        keepRouteNo: 'Y',
        keepSequenceNo: 'Y'
    };

    if (this.reportName == 'Disposal' && this.reportTypeInfo.type == 'RT') {
        data.dowList = [];
    } else {
        if (this.dow.length) {
            data.dowList = this.dow;
        }
    }

    this.startTime = new Date();
    this.refreshTime = this.startTime;
    const secs: number = this.commonService.getTimeDifferenceInSeconds(this.refreshTime, this.startTime);
    this.duration = this._http.convertSecsIntoMins(secs);
    ws.send('/app/startJob', {}, JSON.stringify(data));
}
```

### Key Changes
- **Loop Through `element.zexFacUnitCosts`:** A `forEach` loop is added to iterate through `element.zexFacUnitCosts` and push a new entry to `facilityData` for each cost object.
- **Removed Single Check:** The check for only the first element (`[0]`) in `zexFacUnitCosts` is removed to accommodate all cost objects.

Now, each cost in `zexFacUnitCosts` will create a corresponding entry in `facilityData`, allowing you to send multiple entries for each facility when the socket message is sent.
User: getting this Object is possibly 'undefined'.ts(2 for element.zexOperationUnitTms[0]
Assistant: