How to remove object from array within ng-repeat with AngularJS?

问题

I am having an array with objects like [{...}, {...}] which I am outputting with ng-repeat. Then I have a delete button with a function to delete it.

Is there a simple way to delete it in AngularJS, perhaps with $index? Or I need to specify an ID on every object as an property?

回答1:

If you don't apply a filter to reorder or filter your array, you can do this:

<div ng-repeat="item in items" ng-click="delete($index)">{{item}}</div>

And the delete function:

$scope.items = [...];

$scope.delete = function (index) {
    $scope.items.splice(index, 1);
}

Another way to do it without filter problems: (ONLY IE9+)

<div ng-repeat="item in items | orderBy: 'id'" ng-click="delete(item)">{{item}}</div>

And the delete function:

$scope.items = [...];

$scope.delete = function (item) {
    $scope.items.splice($scope.items.indexOf(item), 1);
}

http://jsfiddle.net/oymo9g2f/2/

回答2:

Here is another example, using Jade too:

template.jade:

 label All Items
 ul.list-group
   li.list-group-item(ng-repeat="item in items | orderBy: '_id'")
    strong {{item.name}}
 a.trash(ng-click='deleteItem(item)')
//a.trash is a bootstrap trash icon, but you don't need to use it.

controller.js:

$scope.deleteItem = function (item) {
    $scope.items.splice($scope.items.indexOf(item),1);
}

回答3:

First try to do it this way, but the listing was not actualized at runtime.

$scope.delete = function (index) {
    delete $scope.items[index];
}

Then with the answer given above by Facundo Pedrazzini did work properly for me.

$scope.delete = function (index) {
    $scope.items.splice(index, 1);
}

Version: AngularJS v1.6.4

回答4:

removeWith comparison for each element in a collection to the given properties object, returning an array without all elements that have equivalent property values.

  $scope.collection = [
    { id: 1, name: 'foo' },
    { id: 1, name: 'bar' },
    { id: 2, name: 'baz' }
  ]

<tr ng-repeat="obj in collection | removeWith:{ id: 1 }">
  {{ obj.name }}
</tr>

<tr ng-repeat="obj in collection | removeWith:{ id: 1, name: 'foo' }">
  {{ obj.name }}
</tr>

回答5:

In blade.php

<table style="width:100%;">
    <tr ng-repeat="name in planFormData.names track by $index">
        <td>
            <div class="form-group">
                <label>Plan Name<span style="color:red;">*</span> </label>
                <input type="text" class="form-control" ng-model="planFormData.names[$index].plan_name" name="plan_name" id="status-name" placeholder="Plan Name" autocomplete="off" required>
            </div>
        </td>
        <td>
           <a href="JavaScript:Void(0);"><i class="icon-plus" ng-click="addRow($index)" ng-show="$last"></i></a>
           <a href="JavaScript:Void(0);"><i class="icon-trash" ng-click="deleteRow($event,name)" ng-show="$index != 0"></i></a>
        </td>
    </tr>
</table>

In controller.js

$scope.deleteRow = function($event, name) {
    var index = $scope.planFormData.names.indexOf(name);
    $scope.planFormData.names.splice(index, 1);    
};

回答6:

In Angular 6, I did similar for Multi Dimensional Array. It's working

  RemoveThisTimeSlot(i: number, j: number) {    
    this.service.formData.ConsultationModelInfo.ConsultationWeekList[i].TimeBlockList.splice(j, 1);
  }

来源：https://stackoverflow.com/questions/30782127/how-to-remove-object-from-array-within-ng-repeat-with-angularjs

标签

angularjs

ng-repeat