Utilize AngularJS to bind keys to arrays

Hey there, I have an array that looks like this:

$scope.Selectedgroups =[183,184,24]

I want to convert it to the format shown below:

 [{groupId:183},{groupId:184},{groupId:24}];

I've been trying to convert it using a for loop:

var groups=[]
        if($scope.Selectedgroups.length > 0){
            for(i=0; i< $scope.Selectedgroups.length; i++){
                groups.push({"groupId":$scope.Selectedgroups});
            }
        }

However, I'm getting an array format like this:

[{"groupId":[183,184,24]},{"groupId":[183,184,24]},{"groupId":[183,184,24]}]

Does anyone have a solution for this issue?

Answer №1

There seems to be an issue with this particular line:

 groups.push({"groupId":$scope.Selectedgroups});

Could you kindly modify it to:

 groups.push({"groupId":$scope.Selectedgroups[i]});

Answer №2

It is recommended to update the index value by pushing it like this:

groups.push({"groupId":$scope.Selectedgroups[i]});

Answer №3

To retrieve the array element at a specific position, use the index in the following way: $scope.Selectedgroups[i]

for(i=0; i< $scope.Selectedgroups.length; i++){
      groups.push({"groupId":$scope.Selectedgroups[i]});
}

Answer №4

Using $scope.Selectedgroups[i] will fetch the selected groups.

         Let's store the groups in an array called 'groups':
            var groups=[]
            if($scope.Selectedgroups.length > 0){
                for(i=0; i< $scope.Selectedgroups.length; i++){
                    groups.push({"groupId":$scope.Selectedgroups[i]});
                }
            }

Answer №5

var app = angular.module('testApp',[]);
app.controller('testCtrl',function($scope){
 $scope.Selectedgroups =[183,184,24];
  $scope.temp=[];
 $scope.Selectedgroups.forEach(function(e){
    $scope.temp.push({groupId:e});
 })
 $scope.Selectedgroups=$scope.temp;
 console.log($scope.Selectedgroups);
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="testApp" ng-controller="testCtrl">

</body>

Answer №6

Here's a sample code snippet for you to try:

<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.1/angular.min.js"></script>
<script type="text/javascript">
  var app = angular.module('myApp', []);

app.controller('myCtrl', function ($scope,$filter) {
$scope.Selectedgroups =[];
var items = [183,184,24];
for(i=0; i< items.length; i++){
var obj = {};
obj['groupId'] = items[i];
$scope.Selectedgroups.push(obj);
}
});

</script>
</head>
<body ng-app="myApp">
<div ng-controller="myCtrl">
{{Selectedgroups}}
</div>
</body>
</html>

Answer №7

The issue at hand is, you need to push a specific value index into your groups array. The other responses have provided detailed explanations on this matter.


However, I have another solution that involves using the map() function to streamline the process and reduce the number of loop statements and lines of code.

var app = angular.module('testApp',[]);
    app.controller('testCtrl',function($scope){
     $scope.Selectedgroups =[183,184,24];
     var groups=[]
      if($scope.Selectedgroups.length > 0){          
      groups = $scope.Selectedgroups.map(function(elem){    
         return {"groupId":elem};
      });
     }
     console.log(groups);
    });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
    <body ng-app="testApp" ng-controller="testCtrl">

    </body>

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