during implementation of ng-repeat directive with JSON dataset

Question

during implementation of ng-repeat directive with JSON dataset

When I receive JSON data and attempt to display it using the ng-repeat directive, I encounter an error

ng-dupes error

<table>
    <tr ng-repeat="emp in empArr">
      <td>{{emp.empcode}}</td>
      <td>{{emp.empName}}</td>
    </tr>
</table>

In addition, here is the AngularJS function responsible for fetching the JSON data :

$scope.Show = function() {

$http.get("get_oracle_data.jsp?sqlStr=SELECT empcode,empname from emp")
    .then(function(response) {
       $scope.empArr = response.data;
});

Could someone point out what might be causing this issue?

javascript angularjs json

Answer 1

Answer №1

Implementing the trackBy feature is crucial to prevent duplicate errors from occurring.

<table>
    <tr ng-repeat="employee in employeeArray track by $index">
        <td>{{employee.employeeCode}}</td>
        <td>{{employee.employeeName}}</td>
    </tr>
</table>

Answer 2

Implementing the trackBy feature is crucial to prevent duplicate errors from occurring.

<table>
    <tr ng-repeat="employee in employeeArray track by $index">
        <td>{{employee.employeeCode}}</td>
        <td>{{employee.employeeName}}</td>
    </tr>
</table>

Answer 3

Answer №2

One way to achieve this is by using the following code snippet:

Using "track by $index" helps in eliminating duplicates from an array:

<table>
    <tr ng-repeat="employee in employeeArray track by $index">
        <td>{{employee.empID}}</td>
        <td>{{employee.empName}}</td>
    </tr>
</table>

Answer 4

One way to achieve this is by using the following code snippet:

Using "track by $index" helps in eliminating duplicates from an array:

<table>
    <tr ng-repeat="employee in employeeArray track by $index">
        <td>{{employee.empID}}</td>
        <td>{{employee.empName}}</td>
    </tr>
</table>

Answer 5

Answer №3

Feel free to explore a similar example on this fiddle

jsfiddle


      <div ng-app='example' ng-controller='demo'>
            <div ng-repeat='item in ITEMS'>
                <p>
                    <label>Label: </label> {{item.title}}
                </p>
            </div>
    </div>

    (function(){

        var app = angular.module('example', []);

        app.controller('demo', 
          [
              '$scope', 
              function($scope)                            
              {
                $scope.ITEMS = [
                  {
                    "id": "1",
                    "title": "Lorem",
                    "description": "ipsum",               
                    "date": "2022-01-01"
                  },
                  {
                    "id": "2",
                    "title": "dolor sit",
                    "description": "amet",               
                    "date": "2022-01-02"
                  }

                ];

                }
          ]);//controller

})();//closure

Answer 6

Feel free to explore a similar example on this fiddle

jsfiddle


      <div ng-app='example' ng-controller='demo'>
            <div ng-repeat='item in ITEMS'>
                <p>
                    <label>Label: </label> {{item.title}}
                </p>
            </div>
    </div>

    (function(){

        var app = angular.module('example', []);

        app.controller('demo', 
          [
              '$scope', 
              function($scope)                            
              {
                $scope.ITEMS = [
                  {
                    "id": "1",
                    "title": "Lorem",
                    "description": "ipsum",               
                    "date": "2022-01-01"
                  },
                  {
                    "id": "2",
                    "title": "dolor sit",
                    "description": "amet",               
                    "date": "2022-01-02"
                  }

                ];

                }
          ]);//controller

})();//closure

during implementation of ng-repeat directive with JSON dataset

Answer №1

Answer №2

Answer №3

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