Utilizing ng-repeat $index for locating an element within an array

Within my $scope, there is a property called $scope.cars, which is an array of cars. Users have the ability to delete a car from this array. When calling the delete function deleteThis, I pass the $index parameter created by ng-repeat. However, in the JavaScript function that receives this parameter, I am unsure how to use it to locate and remove the corresponding car from $scope.cars. Since $index is not a built-in part of $scope.cars, I am seeking guidance on how to achieve this.

$scope.deleteThis = function($event, $index){
   // How can I utilize $index to find the car in $scope.cars and delete it?

}

<div ng-repeat="car in cars">   
<div class="row">
<div class="col-md-1"><h2>{{car.name}}</h2>{{car.make}}</div>

<div class="col-md-2"></div>
<span class="delete" ng-click="deleteThis($event, $index)">x</span>
</div>

Answer №1

Instead of relying on index, simply pass the object car and remove it using splice.

<span class="delete" ng-click="deleteThis(car)">x</span>

Another option is to use $index (although be cautious when using $index with filters like orderBy as it may not accurately represent the original array index). $index is associated with the child scope created by ng-repeat, rather than the repeated object itself. Passing car provides clearer code and allows for better reusability within the ng-repeat.

If you still prefer to use index, here's a way to do it:

$scope.deleteThis = function(index){
    $scope.cars.splice(index, 1);
}

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