Having trouble with Angular JS functionality

Today is my first day diving into AngularJS and I'm eager to learn more! Despite grasping the concept of how model-controller-views operate in AngularJS, I encountered an issue where the variables are not displaying as expected. Instead of the values, it shows the {{}} HTML views without ng-repeat functionality:

<html ng-app='myApp'>
    <head>
        <title>Your Shopping Cart</title>
    </head>
    <body ng-controller='CartController'>
        <h1>Your Order</h1>
        <div ng-repeat='item in items'>
            <span>{{item.title}}</span>
            <input ng-model='item.quantity'>
            <span>{{item.price | currency}}</span>
            <span>{{item.price * item.quantity | currency}}</span>
            <button ng-click="remove($index)">Remove</button>
        </div>
        <script src="lib/angular.js"></script>
        <script>
            function CartController($scope) {
                $scope.items = [
                    {title: 'Paint pots', quantity: 8, price: 3.95},
                    {title: 'Polka dots', quantity: 17, price: 12.95},
                    {title: 'Pebbles', quantity: 5, price: 6.95}
                ];
                $scope.remove = function(index) {
                    $scope.items.splice(index, 1);
                }
            }
        </script>
    </body>
</html>

Can you spot the error within the code?

Answer №1

To make it work, simply

<html ng-app='myApp'>

can be changed to

<html ng-app>

and everything should function as expected.

The use of ng-app='myApp' in the previous code indicates to AngularJS that there is a module named myApp. However, since no module has been defined, this can cause issues with the functionality of your application.

Answer №2

It is important to properly define the myApp module in your AngularJS application:

var app = angular.module('myApp', []);
app.controller('CartController', ['$scope', function($scope) {
    $scope.items = [
        {title: 'Candles', quantity: 10, price: 7.99},
        {title: 'Sunglasses', quantity: 15, price: 19.99},
        {title: 'Notebooks', quantity: 3, price: 4.99}
    ];
    $scope.remove = function(index) {
        $scope.items.splice(index, 1);
    }
}]);

VIEW DEMO

Answer №3

Essentially, the module was not defined in the controller.

<script>
 angular.module('myApp', []);  // Make sure to include this line

        function CartController($scope) {
            $scope.items = [
                {title: 'Paint pots', quantity: 8, price: 3.95},
                {title: 'Polka dots', quantity: 17, price: 12.95},
                {title: 'Pebbles', quantity: 5, price: 6.95}
            ];
            $scope.remove = function(index) {
                $scope.items.splice(index, 1);
            }
        }
    </script>

See your Demo on Plunker

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