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“.push Is Not A Function” Error While Inserting Key-value To An Array In AngularJS

I’m trying push ItemId(as a key) and PartNO(value) to an array dynamically based on Noof ItemPartDtls using a for loop so that I can again fetch those PartNOs using ItemID in the for loop when required.

But I got the error message:

TypeError: NoofParts.push is not a function

while pushing.

var NoofParts = []; // initialized globally

if ($scope.ItemPartDtls.length > 0) {    
    for (let e = 0; e <= $scope.ItemPartDtls.length - 1; e++) {
        // NoofParts.push({ "ItemID": $scope.ItemsInfo[d].ITEM_ID, "PartNO":  $scope.ItemPartDtls[e].PART_NO });
        NoofParts.push({ ItemID: $scope.ItemsInfo[d].ITEM_ID, PartNO: $scope.ItemPartDtls[e].PART_NO});
        // error here: TypeError: NoofParts.push is not a function
    }
}

...

function GetPartdtls(ItmId){
    for(i = 0; i < NoofParts.length; i++){
        if(NoofParts[i].ItemID == ItmId) {
            console.log("ItemID:- " + NoofParts[i].ItemID + " PartNO:- "  + NoofParts[i].PartNO);
        }
    }
}
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Answer

Try like this way

 var NoofParts =  []; // initialized globally

if ($scope.ItemPartDtls.length > 0) {    
   for (let e = 0; e <= $scope.ItemPartDtls.length - 1; e++) {
       // NoofParts.push({ "ItemID": $scope.ItemsInfo    [d].ITEM_ID, "PartNO":  $scope.ItemPartDtls[e].PART_NO});
        let newArr = { 
                       ItemID: $scope.ItemsInfo[e].ITEM_ID, //here your typo error
                       PartNO: $scope.ItemPartDtls[e].PART_NO
                      }
        NoofParts.push(newArr);
    }
}
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source: stackoverflow.com
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