Having issues with AngularJs functionality in a basic project

Question

Having issues with AngularJs functionality in a basic project

After creating a simple helloworld with angular, I am unable to see the result. The angular.min.js file is included in the html and loads correctly in the browser. Here is my code:

<!DOCTYPE html>
<html>
    <head lang="en">
    <meta charset="UTF-8>
            <title></title>
    </head>

<body>
    <h1 ng-controller="HelloWorldCtrl">{{helloMessage}}</h1>

    <script src="angular.min.js"></script>
    <script type="text/javascript">
        function HelloWorldCtrl($scope){
            $scope.helloMessage = "Hello Mohammad";
        }
    </script>
</body>
</html>

The current Result : {{helloMessage}}

javascript angularjs

Answer 1

Answer №1

In order to bootstrap an Angular.js application, the ng-app directive must be included in your HTML. This directive informs the browser that you are initializing an Angular.js app. If you have a specific module, you can specify it using ng-app="modulename", or simply use ng-app for auto-bootstrap.

<html ng-app>

Update: As of angular 1.3, global controller declaration on the global scope is no longer supported. Controllers should now be declared within an angular.module as shown below:

angular.module('myapp', []).controller('HelloWorldCtrl', function(){
    $scope.helloMessage = "Hello Mohammad";
});

Working Demo:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<!DOCTYPE html>
<html ng-app="myapp">
    <head lang="en">
    <meta charset="UTF-8>
    <title></title>
    </head>
    <body>
    <h1 ng-controller="HelloWorldCtrl">{{helloMessage}}</h1>

    <script src="angular.min.js"></script>
    <script type="text/javascript">
       angular.module('myapp', []).controller('HelloWorldCtrl', function($scope){
      $scope.helloMessage = "Hello Mohammad";
      });
    </script>
    </body>
    </html>

Answer 2

In order to bootstrap an Angular.js application, the ng-app directive must be included in your HTML. This directive informs the browser that you are initializing an Angular.js app. If you have a specific module, you can specify it using ng-app="modulename", or simply use ng-app for auto-bootstrap.

<html ng-app>

Update: As of angular 1.3, global controller declaration on the global scope is no longer supported. Controllers should now be declared within an angular.module as shown below:

angular.module('myapp', []).controller('HelloWorldCtrl', function(){
    $scope.helloMessage = "Hello Mohammad";
});

Working Demo:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<!DOCTYPE html>
<html ng-app="myapp">
    <head lang="en">
    <meta charset="UTF-8>
    <title></title>
    </head>
    <body>
    <h1 ng-controller="HelloWorldCtrl">{{helloMessage}}</h1>

    <script src="angular.min.js"></script>
    <script type="text/javascript">
       angular.module('myapp', []).controller('HelloWorldCtrl', function($scope){
      $scope.helloMessage = "Hello Mohammad";
      });
    </script>
    </body>
    </html>

Answer 3

Answer №2

To successfully implement this code, ensure that you utilize ng-app and define the controller:

<html>
<head></head>
<body ng-app="myApp">
<h1 ng-controller="HelloWorldCtrl as ctrl">{{ctrl.HelloMessage}}</h1>
<script
  src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js">
</script>
<script>
angular.module('myApp', [])
    .controller('HelloWorldCtrl', [function() {
       this.HelloMessage = 'Hello';
  }]);
</script>
</body>
</html>

This provided code has been verified to be functional.

Answer 4

To successfully implement this code, ensure that you utilize ng-app and define the controller:

<html>
<head></head>
<body ng-app="myApp">
<h1 ng-controller="HelloWorldCtrl as ctrl">{{ctrl.HelloMessage}}</h1>
<script
  src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js">
</script>
<script>
angular.module('myApp', [])
    .controller('HelloWorldCtrl', [function() {
       this.HelloMessage = 'Hello';
  }]);
</script>
</body>
</html>

This provided code has been verified to be functional.

Having issues with AngularJs functionality in a basic project

Answer №1

Answer №2

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