Step-by-step guide on defining a property within the ng-repeat's scope

Question

Step-by-step guide on defining a property within the ng-repeat's scope

My goal is to create a dynamic list of items that can be edited individually. Each item should have its own editing mode.

Here's the code I'm using:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="item.editMode">...</div>
        <div class="edit-on" ng-show="item.editMode">...</div>

        <button ng-click="toggleEdit(item)">Edit</button>
    </li>
</ul>

And here's the JavaScript part:

angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items

        $scope.toggleEdit = function(item) {
            item.editMode = !item.editMode;
        };
    });

After reviewing this code, I realized that I mistakenly attached the editMode property to the controller scope instead of each individual item's scope. This caused all items to switch into editing mode simultaneously when any edit button was clicked.

I now understand that I need to assign an editMode property to each item's scope so that they can be edited independently.

javascript angularjs

Answer 1

Answer №1

Add a property to each item:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="item.editMode">...</div>
        <div class="edit-on" ng-show="item.editMode">...</div>

        <button ng-click="toggleEdit(item)">Edit</button>
    </li>
</ul>


angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items

        $scope.toggleEdit = function(item) {
            item.editMode = !item.editMode;
        };
    });

Answer 2

Add a property to each item:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="item.editMode">...</div>
        <div class="edit-on" ng-show="item.editMode">...</div>

        <button ng-click="toggleEdit(item)">Edit</button>
    </li>
</ul>


angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items

        $scope.toggleEdit = function(item) {
            item.editMode = !item.editMode;
        };
    });

Answer 3

Answer №2

To implement the use of $index, follow this example:

angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items
        $scope.editMode = [];

        $scope.toggleEdit = function(index) {
            $scope.editMode[index] = !$scope.editMode[index];
        };
    });

HTML:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="editMode[$index]">...</div>
        <div class="edit-on" ng-show="editMode[$index]">...</div>

        <button ng-click="toggleEdit($index)">Edit</button>
    </li>
</ul>

Demo: https://jsfiddle.net/iRbouh/rftfx7j4/

Answer 4

To implement the use of $index, follow this example:

angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items
        $scope.editMode = [];

        $scope.toggleEdit = function(index) {
            $scope.editMode[index] = !$scope.editMode[index];
        };
    });

HTML:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="editMode[$index]">...</div>
        <div class="edit-on" ng-show="editMode[$index]">...</div>

        <button ng-click="toggleEdit($index)">Edit</button>
    </li>
</ul>

Demo: https://jsfiddle.net/iRbouh/rftfx7j4/

Answer 5

Answer №3

If you want to customize each item, you can include a property for editing purposes.

 $scope.items = [{name: 'misko', gender: 'male'},{name: 'misko1', gender: 'male'}];

  angular.forEach($scope.items, function(obj) {
    obj["editMode"] = false
  });

When displaying the items in the view:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="editMode[$index]">...</div>
        <div class="edit-on" ng-show="editMode[$index]">...</div>

        <button ng-click="item.editMode = !item.editMode">Edit</button>
    </li>
</ul>

Answer 6

If you want to customize each item, you can include a property for editing purposes.

 $scope.items = [{name: 'misko', gender: 'male'},{name: 'misko1', gender: 'male'}];

  angular.forEach($scope.items, function(obj) {
    obj["editMode"] = false
  });

When displaying the items in the view:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items">
        <div class="edit-off" ng-hide="editMode[$index]">...</div>
        <div class="edit-on" ng-show="editMode[$index]">...</div>

        <button ng-click="item.editMode = !item.editMode">Edit</button>
    </li>
</ul>

Answer 7

Answer №4

Utilize the $index variable.

Here is an example using HTML:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items track by $index">
        <div class="edit-off" ng-hide="editMode">...</div>
        <div class="edit-on" ng-show="editMode">...</div>

        <button ng-click="toggleEdit($index)">Edit</button>
    </li>
</ul>

And here is a snippet of JavaScript code:

angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items

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

function setEditMode(item) {
    item.editMode = false;
}

Answer 8

Utilize the $index variable.

Here is an example using HTML:

<ul ng-controller="ItemCtrl">
    <li ng-repeat="item in items track by $index">
        <div class="edit-off" ng-hide="editMode">...</div>
        <div class="edit-on" ng-show="editMode">...</div>

        <button ng-click="toggleEdit($index)">Edit</button>
    </li>
</ul>

And here is a snippet of JavaScript code:

angular.module("app", [])
    .controller("ItemCtrl", function($scope) {
        $scope.items = [...]; // list of items

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

function setEditMode(item) {
    item.editMode = false;
}

Answer 9

Answer №5

To implement the editMode feature for each item, follow the instructions provided in @John's response. Check out the functional Plunker link below:

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

app.controller('MainCtrl', function($scope) {
   $scope.items = [
      { id:2, ds: 'test1' },
      { id:2, ds: 'test2' },
      { id:2, ds: 'test3'}]; // list of items


        $scope.toggleEdit = function($index) {
            $scope.items[$index].editMode = !$scope.items[$index].editMode;
        };
});

Answer 10

To implement the editMode feature for each item, follow the instructions provided in @John's response. Check out the functional Plunker link below:

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

app.controller('MainCtrl', function($scope) {
   $scope.items = [
      { id:2, ds: 'test1' },
      { id:2, ds: 'test2' },
      { id:2, ds: 'test3'}]; // list of items


        $scope.toggleEdit = function($index) {
            $scope.items[$index].editMode = !$scope.items[$index].editMode;
        };
});

Answer 11

Answer №6

Here is one way to implement this using AngularJS:

<ul ng-controller="ItemCtrl">
<li ng-repeat="item in items">
    <div class="edit-off" ng-hide="editMode[$index]">{{editMode[$index]}}</div>
    <div class="edit-on" ng-show="editMode[$index]">{{editMode[$index]}}</div>

    <button ng-click="toggleEdit($index)">Edit</button>
</li>

var myApp = angular.module("myApp", [])
.controller("ItemCtrl", function($scope) {
    $scope.items = ["aaa","bbb","ccc"]; // list of items
    $scope.editMode = [true,true,true];

    $scope.toggleEdit = function(index) {
        $scope.editMode[index] = !$scope.editMode[index];
    };
});

Visit this link for a live demo.

Answer 12

Here is one way to implement this using AngularJS:

<ul ng-controller="ItemCtrl">
<li ng-repeat="item in items">
    <div class="edit-off" ng-hide="editMode[$index]">{{editMode[$index]}}</div>
    <div class="edit-on" ng-show="editMode[$index]">{{editMode[$index]}}</div>

    <button ng-click="toggleEdit($index)">Edit</button>
</li>

var myApp = angular.module("myApp", [])
.controller("ItemCtrl", function($scope) {
    $scope.items = ["aaa","bbb","ccc"]; // list of items
    $scope.editMode = [true,true,true];

    $scope.toggleEdit = function(index) {
        $scope.editMode[index] = !$scope.editMode[index];
    };
});

Visit this link for a live demo.

Step-by-step guide on defining a property within the ng-repeat's scope

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

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