Exploring the Isolation of Scope in AngularJS version 1.2.9

Question

Exploring the Isolation of Scope in AngularJS version 1.2.9

I've implemented Scope Isolation in one of my directives, but I'm encountering some issues:

<div ng-controller="MyCtrl">
  Hello, {{name}}!
    <dir info='spec'>
        {{ data }}
    </dir>
</div>

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

//myApp.directive('myDirective', function() {});
//myApp.factory('myService', function() {});

function MyCtrl($scope) {
    $scope.name = 'Superhero';
    $scope.spec = 'Super';
}

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      }
    }
});

Fiddle: enter link description here

javascript angularjs

Answer 1

Answer №1

Check out this fiddle: http://jsfiddle.net/WA5t5/

In a recent commit(1.2), it was noted that child elements defined in the application template or other directives' templates may not receive an isolate scope.

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

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
        template: "{{ data }}"
    }
});

If you would like to modify this behavior, take a look at my response to the question: Why I can't access the right scope?

Answer 2

Check out this fiddle: http://jsfiddle.net/WA5t5/

In a recent commit(1.2), it was noted that child elements defined in the application template or other directives' templates may not receive an isolate scope.

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

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
        template: "{{ data }}"
    }
});

If you would like to modify this behavior, take a look at my response to the question: Why I can't access the right scope?

Answer 3

Answer №2

Check it out:

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
      template:"<div>{{data}}</div>"
    }
});

See the demonstration here

An alternative approach involves using transclusion to establish your own scope bindings:

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
      transclude:true,
      compile: function (element, attr, linker) {
          return function (scope, element, attr) {
          linker(scope, function(clone){
                element.append(clone); // add to DOM
          });
          };
      }
    }
});

You can continue to use the same HTML structure as previously shown:

<div ng-controller="MyCtrl">
  Hello, {{name}}!
    <dir info='spec'>
        {{data}}
    </dir>
</div>

View the updated demo

Answer 4

Check it out:

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
      template:"<div>{{data}}</div>"
    }
});

See the demonstration here

An alternative approach involves using transclusion to establish your own scope bindings:

myApp.directive('dir', function(){
    return {
      restrict: 'AE',
      scope:{
        data: '=info'
      },
      transclude:true,
      compile: function (element, attr, linker) {
          return function (scope, element, attr) {
          linker(scope, function(clone){
                element.append(clone); // add to DOM
          });
          };
      }
    }
});

You can continue to use the same HTML structure as previously shown:

<div ng-controller="MyCtrl">
  Hello, {{name}}!
    <dir info='spec'>
        {{data}}
    </dir>
</div>

View the updated demo

Answer 5

Answer №3

Ensure that you have a template set up within your directive to display the data scope variable. The HTML code won't recognize the data scope variable, as it is specific to the directive's template. For a demonstration, check out this example

myApp.directive('dir', function () {
    return {
        restrict: 'AE',
        scope: {
            data: '=info'
        },
        link: function (scope, element, attrs) {
            console.log(scope.data);
        },
        template: 'Hello {{data}}'
    }
});

Answer 6

Ensure that you have a template set up within your directive to display the data scope variable. The HTML code won't recognize the data scope variable, as it is specific to the directive's template. For a demonstration, check out this example

myApp.directive('dir', function () {
    return {
        restrict: 'AE',
        scope: {
            data: '=info'
        },
        link: function (scope, element, attrs) {
            console.log(scope.data);
        },
        template: 'Hello {{data}}'
    }
});

Exploring the Isolation of Scope in AngularJS version 1.2.9

Answer №1

Answer №2

Answer №3

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