Troubleshooting AngularJS: Issues arise when implementing ng-view

Here is the code snippet from my index.html file:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1.0 ,user-scalable=no">
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.min.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular-route.js"></script>
    <script src="app.js"></script>
    <title>TESTS</title>
</head>
<body ng-app="testApp">
<a href="#link">Testing angularjs routing</a>
<div ng-view>{{message}}</div>
<div ng-controller="TestController">{{message}}</div>
</body>
</html>

And here is the content of my app.js file:

var testApp = angular.module('testApp', ['ngRoute'])
    .config(function($routeProvider) {
        $routeProvider
            .when('/', {
                templateUrl:'index.html',
                controller: 'TestController'
            }).when('/link', {
                templateUrl:'link.html',
                controller:'LinkController'
            });
    });
testApp.controller('TestController', function ($scope) {
    $scope.message = "INDEX";
});
testApp.controller('LinkController', function ($scope) {
   $scope.message = "LINK";
});

I seem to be having an issue with the routing in my AngularJS application. The link in my HTML is not clickable, even though it appears to be a normal link. Additionally, the second message is displaying "INDEX", which leads me to believe that the problem lies with the ng-view directive. When I remove the line with ng-view, the link becomes clickable again. I'm unsure of what could be causing this issue and would appreciate any insights or suggestions.

Answer №1

Your code has several issues that need to be addressed.

It's not just that your link is not working, but that it's causing the browser to crash due to an infinite loop. This happens because you are pointing your view to 'index.html' when the route is '/'.

As a result, when you start, index.html is loaded, which then loads index.html in its ng-view, which in turn loads index.html in its view, leading to a never-ending cycle.

Additionally, there is content in your ng-view that will be overwritten by the actual view you are trying to load.

Furthermore, using your TestController both on a view and in your index.html may not be practical in most applications. It's best to reconsider this approach.

Overall, the code is messy. Here is a functional example: http://plnkr.co/edit/MrdAKu86S3RoreQhO14H?p=preview

var testApp = angular.module('testApp', ['ngRoute'])
    .config(function($routeProvider) {
        $routeProvider
            .when('/', {
                templateUrl:'home.html',
                controller: 'TestController'
            }).when('/link', {
                templateUrl:'link.html',
                controller:'LinkController'
            });
    });
testApp.controller('TestController', function ($scope) {
    $scope.message = "INDEX";
});
testApp.controller('LinkController', function ($scope) {
   $scope.message = "LINK";
});

and

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1.0 ,user-scalable=no">
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular-route.js"></script>
    <script src="script.js"></script>
    <title>TESTS</title>
</head>
<body ng-app="testApp">

<a href="#/">Home</a>
<a href="#/link">Testing angularjs routing</a>

<div ng-view></div>
</body>
</html>

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