javascript - How to remove an item from an array in AngularJS scope? - Stack Overflow

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Simple to-do list, but with a delete button on list page for each item:

Relevant template HTML:

<tr ng-repeat="person in persons">
  <td>{{person.name}} - # {{person.id}}</td>
  <td>{{person.description}}</td>
  <td nowrap=nowrap>
    <a href="#!/edit"><i class="icon-edit"></i></a>
    <button ng-click="delete(person)"><i class="icon-minus-sign"></i></button>
  </td>
</tr>

Relevant controller method:

$scope.delete = function (person) {
  API.DeletePerson({ id: person.id }, function (success) {
    // I need some code here to pull the person from my scope.
  });
};

I tried $scope.persons.pull(person) and $scope.persons.remove(person).

Although the database deleted successfully, I can not pull this item from scope and I do not want to make a method call to the server for data the client already has, I just want to remove this one person from scope.

Any ideas?

Simple to-do list, but with a delete button on list page for each item:

Relevant template HTML:

<tr ng-repeat="person in persons">
  <td>{{person.name}} - # {{person.id}}</td>
  <td>{{person.description}}</td>
  <td nowrap=nowrap>
    <a href="#!/edit"><i class="icon-edit"></i></a>
    <button ng-click="delete(person)"><i class="icon-minus-sign"></i></button>
  </td>
</tr>

Relevant controller method:

$scope.delete = function (person) {
  API.DeletePerson({ id: person.id }, function (success) {
    // I need some code here to pull the person from my scope.
  });
};

I tried $scope.persons.pull(person) and $scope.persons.remove(person).

Although the database deleted successfully, I can not pull this item from scope and I do not want to make a method call to the server for data the client already has, I just want to remove this one person from scope.

Any ideas?

• javascript
• html
• angularjs

Share Improve this question Follow edited May 14, 2020 at 10:18 Xsmael 3,90299 gold badges4848 silver badges6262 bronze badges asked Jan 10, 2013 at 4:04 ByeBye 2,80677 gold badges2626 silver badges3636 bronze badges 2

• I run this whit $route, and the view won't work fine. I always got a empty page after I did the delete :-( – zx1986 Commented Sep 4, 2013 at 11:43
• this is not so much about deleting from scope but rather from an array, and it would be the same regardless of angular, its just javascript – Xsmael Commented May 14, 2020 at 10:17

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10 Answers 10

Sorted by: Reset to default 309

You'll have to find the index of the person in your persons array, then use the array's splice method:

$scope.persons.splice( $scope.persons.indexOf(person), 1 );

Your issue is not really with Angular, but with Array methods. The proper way to remove a particularly item from an array is with Array.splice. Also, when using ng-repeat, you have access to the special $index property, which is the current index of the array you passed in.

The solution is actually pretty straightforward:

View:

<a ng-click="delete($index)">Delete</a>

Controller:

$scope.delete = function ( idx ) {
  var person_to_delete = $scope.persons[idx];

  API.DeletePerson({ id: person_to_delete.id }, function (success) {
    $scope.persons.splice(idx, 1);
  });
};

I would use the Underscore.js library that has a list of useful functions.

without

without_.without(array, *values)

Returns a copy of the array with all instances of the values removed.

_.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
// => [2, 3, 4]

Example

var res = "deleteMe";

$scope.nodes = [
  {
    name: "Node-1-1"
  },
  {
    name: "Node-1-2"
  },
  {
    name: "deleteMe"
  }
];
    
$scope.newNodes = _.without($scope.nodes, _.findWhere($scope.nodes, {
  name: res
}));

See Demo in JSFiddle.

---

filter

var evens = _.filter([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });

// => [2, 4, 6]

Example

$scope.newNodes = _.filter($scope.nodes, function(node) {
  return !(node.name == res);
});

See Demo in Fiddle.

$scope.removeItem = function() {
    $scope.items.splice($scope.toRemove, 1);
    $scope.toRemove = null;
};

this works for me!

If you have any function associated to list ,when you make the splice function, the association is deleted too. My solution:

$scope.remove = function() {
    var oldList = $scope.items;
    $scope.items = [];

    angular.forEach(oldList, function(x) {
        if (! x.done) $scope.items.push( { [ DATA OF EACH ITEM USING oldList(x) ] });
    });
};

The list param is named items. The param x.done indicate if the item will be deleted.

Another references: Another example

Hope help you. Greetings.

For the the accepted answer of @Joseph Silber is not working, because indexOf returns -1. This is probably because Angular adds an hashkey, which is different for my $scope.items[0] and my item. I tried to resolve this with the angular.toJson() function, but it did not work :(

Ah, I found out the reason... I use a chunk method to create two columns in my table by watching my $scope.items. Sorry!

You can also use this

$scope.persons = $filter('filter')($scope.persons , { id: ('!' + person.id) });

Angular have a built-in function called arrayRemove, in your case the method can simply be:

arrayRemove($scope.persons, person)

array.splice(array.pop(item));

To remove a element from scope use:

// remove an item
    $scope.remove = function(index) {
        $scope.items.splice(index, 1);
    };

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