如何从对象数组中获取属性

How to get property from an array of object ?

本文关键字：获取 属性 数组 对象      更新时间：2023-09-26

我在json响应中有对象数组，我想从includeAssessmentList数组中获得riskAssessmentKey，并通过Post Api将该键传递给后端，我无法从数组中获得属性。我怎样才能完成这个任务?

目前已试代码....

main.js 

$scope.deleteAssess = function(){
          var assessmentKey = [];
          assessmentKey = $scope.rcsaCycleDTO.includeAssessmentList;
          for (var i=0; i<assessmentKey.length; i++) {
              var riskAssessmentKeys = assessmentKey[i];
              console.log(riskAssessmentKeys);
          }
          RcsaFactory.assessmentDetails(assessmentKey,$scope.rcsaCycleDTO.statusLookUpCode).then(function(){
            setConfirmationWinButtons(true, true, true);
            $scope.confirmationWin.open().center();
            $scope.confirmationWin.close();
          });
        };

JSON.js 

[{includeAssessmentList: 
0: {cycleName: "Test startassment1", assessmentName: "Algeria_Angola", scopeType: null,…}
assessmentEndDate: "06/06/2015"
assessmentName: "Algeria_Angola"
assessmentRoleTypeDTOs: []
assessmentStartDate: "06/05/2015"
assessmentStatus: "Draft"
assessmentStatusLookUpCode: "RA_ASES_DRAFT"
availableRolesKey: []
beginTransactionTime: 1433422729000
createWorkerKey: -1066
createWorkerText: "NBKTHMC"
createdTimestamp: 1433495095000
currentFlag: 1
cycleEndDate: "06/06/2015"
cycleName: "Test startassment1"
cycleStartDate: "06/05/2015"
cycleType: "RA_RCSA"
dueDate: "06/26/2015"
endTransactionTime: 1433495095000
erhFlag: null
erhList: null
filteredErhList: null
geoLocationLst: null
legalEntity: null
modifiedTimestamp: 1433422729000
modifiedTimestampString: "06/04/2015"
modifiedUserText: "NBKTHMC"
modifyWorkerKey: -1066
rcsaOwnerWorkerKey: null
rcsaPreparerWorkerKey: null
responseMesg: null
riskAssessmentCycleKey: null
riskAssessmentKey: 87
riskAssessmentRoleTypeKey: null
scopeType: null
selectedRolesKey: []
sourceFeed: 1
statusLookUpCode: "RS_ACTIVE"
}]

在您的for循环中，您只读取数组项，而不是所需的属性riskAssessmentKey。试试这个。

for (var i=0; i<assessmentKey.length; i++) {
   var riskAssessmentKeys = assessmentKey[i].riskAssessmentKey;
   console.log(riskAssessmentKeys);
}

如果includeAssessmentList总是只包含一个项目，那么你不需要for循环，你可以试试这个

if ($scope.rcsaCycleDTO.includeAssessmentList && $scope.rcsaCycleDTO.includeAssessmentList.length) {
  var riskAssessmentKeys = $scope.rcsaCycleDTO.includeAssessmentList[0].riskAssessmentKey;
}

如果你必须从数组中读取所有的ristAssetKeyKeys，那么试试这个

   var riskAssessmentKeys = [];
   for (var i=0; i<assessmentKey.length; i++) {
      riskAssessmentKeys.push(assessmentKey[i].riskAssessmentKey);
   }
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