Why doesn't this angularjs application start? - javascript

I'm trying to build an angularjs application. Everything seems fine, there is no error, but it's not working. To remove other factors, I removed everything (requirejs etc.) and dumbed it down to a small html file.
Here is the js code in html:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="bower_components/angular/angular.js"></script>
<script src="bower_components/angular-route/angular-route.js"></script>
<script>
angular.module('application', ['ngRoute']);
angular.module('application').config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/', {template: 'test content', controller: 'controller1'});
$routeProvider.otherwise({redirectTo: '/'});
}]);
angular.module('application').controller('controller1', ['$scope', function($scope) {
console.log('in controller1');
}]);
angular.bootstrap(document, ['application']);
</script>
</head>
<body>
</body>
</html>
Result I'm expecting to see is "test content" on page, and 'in controller1' in my console.
Can you tell me why it's not working?

Your are missing the ng-view directive that works together with the routes to display the template provided in the route config.
Working plunker
Code:
<body>
<div ng-view></div>
<script>
angular.module('app', [])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/', {template: '<p>test content</p>', controller: 'controller1'});
$routeProvider.otherwise({redirectTo: '/'});
}])
.controller('controller1', ['$scope', function($scope) {
console.log('in controller1');
}]);
angular.bootstrap(document, ['app']);
</script>
</body>

Angular JS bootstraps by using ng-app and ng-controller directive declared in html.
Refer this:
http://docs.deployd.com/docs/collections/examples/a-simple-todo-app-with-angular.md

Try adding adding this document ready test around you bootstrap call. It'll wait to call bootstrap until the document (DOM) is completely ready.
If you don't wrap bootstrap in the ready() call the browser may still be in the middle of constructing the DOM when angular builds it's view of the DOM. This can lead to angular being unaware of parts of your page, or worse (and this can be tough to debug).
angular.element(document).ready(function() {
angular.bootstrap(document, ['application']);
};
You can read more about that in this guide to angular initialization: http://docs-angularjs-org-dev.appspot.com/guide/bootstrap
Or you could use <html ng-app='application'> instead as others have mentioned if you want to go the more traditional route- but then you'd have to get rid of the angular.bootstrap call.

Related

understanding routes and templates html in angularjs, simples example possible

I'm trying to embed angularjs into my existing asp.net mvc4 app.
(Views/Shared/)
_Layout.cshtml
<html data-ng-app="myApp">
<head>
<script src="~/Scripts/angular.min.js"></script>
<script src="/js/main.js"></script>
</head>
<body>
#RenderBody()
</body>
</html>
/js/main.js
var app = angular.module("myApp", []);
module.config(function ($routeProvider) {
$routeProvider.when("/topics", {
controller: "topicsController",
templateUrl: "/js/templates/topicsView.html"
});
$routeProvider.otherwise({ redirectTo: "/" });
});
app.controller("topicsController", function ($scope) {
$scope.testData = "some dummy data";
});
/js/templates/topicsView.html
<h1>topics template view, dummy object </h1>
{{ testData }}
and inside /Views/Home/Index.cshtml
<div data-ng-view=""></div>
I'm trying to navigate to /topics using #/topics url but nothing is rendered (blank page, not 404), not even h1 title from templates/topicsView.html
What I'm doing wrong?
You forgot to include ngRoute module. Try this:
var app = angular.module("myApp", ['ngRoute']);
You need to include angular-routes.js along with angular.js and then include ngRoutes modules as a dependency when you create the angular main app module.

AngularJS infinite loop with ng-view

I've just started using AngularJS for a new app I'm looking at putting together but I've run into a problem when using routes and views.
I've stripped this example down to the bare minimum but the issue remains. All this example is doing is hitting the server and returning the index.html page, which then sources Angular etc.
index.html
<!doctype html>
<html lang="en" ng-app="main">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" src="css/style.css" />
<script type="text/javascript" src="js/ext/angular.min.js"></script>
<script type="text/javascript" src="js/ext/angular-route.min.js"></script>
<script type="text/javascript" src="js/main.js"></script>
<script type="text/javascript" src="js/test.js"></script>
<base href="/ui/">
</head>
<body>
<div ng-view></div>
</body>
</html>
main.js
(function() {
var app = angular.module('main', ['ngRoute', 'test']);
app.config(['$routeProvider', '$locationProvider', function($routeProvider, $locationProvider) {
$routeProvider
.when('/test', {
templateUrl: 'html/test.html',
controller: 'TestCtrl'
})
.otherwise({
redirectTo: '/test'
});
$locationProvider.html5Mode(true);
}]);
})();
test.js
(function() {
var app = angular.module('test', []);
// get hierarchy
app.controller('TestCtrl', ['$scope', function($scope) {
alert('here');
}]);
})();
test.html
<div>FooBar!</div>
The alert gets fired infinitely but I just don't know why. I've seen other examples where ng-view and routing appear to be used exactly the same way, so I'm not sure what I'm doing wrong...
I had same problem sometime ago. Please, use firebug or some network control in the same browser at the developers tools panel where you can see the requests to the server for resources and then check that test.html file is requested and is correctly retrieved. It seems like the only one that is retrieved is the index.html and due this, the loop.
Probably you have to use this templateUrl value "/html/test.html" with "/" before. To localize this resource.
This is the idea that I'm proposing you. Localize the test.html resource with the correct way. I hope this can help you.
I had this issue today in March 2016. I have just found out what was causing the infinite loop when ng-view is present in the html (index.html in my case which is the initial html loaded at the start).
Ok, the problem was after all very simple one. I had this route provider setting in my app.js
angular.module('myapp',['ngRoute'])
.config(function($routeProvider) {
$routeProvider
.when('/', {
templateUrl:'/index.html',
controller:'MyAppCtrl'
})
Since the initial html loaded is index.html, and the url at that point is '/', and the routeProvider invokes the code at when '/'. Yes, it loads index.html again, and again and again and again... till it dies. The solution is not to set index.html as the templateUrl for the '/' route. The html (template) should not include <div ng-view></div>.
Here's how I've done it, example here
Code
.config(['$routeProvider', '$locationProvider',function($routeProvider, $locationProvider) {
$routeProvider
.when('/test', {
template: '<div>test</div>',
controller: 'testCtrl'
})
.when('/other', {
template: '<div>Delete</div>',
controller: 'otherCtrl'
})
.otherwise({
redirectTo: '/test'
});
$locationProvider.html5Mode(true);
}]);
Ok, I solved my problem. I've accepted sergio's as it was closest to how I realised what the problem was - my app was requesting the html file from the application server, which is set up to return the index.html file as a default action. As the html request had no associated action, the default response of returning index.html was kicking in instead of the test.html file.
Once I changed the url so it was getting the html file from the web server, everything worked great. If I'd taken a moment earlier to actually think through what was happening, it would've been obvious.
Thanks for the responses!

AngularJS Route Uncaught object in v 1.2.15 But not in v 1.0.1

I've been trying a ng-route example which works in AngularJS version 1.0.1 but not working in version 1.2.15. I did added the dependency angular-route.js but still getting uncaught object error. The following is my example. It consists of 4 files (index.html, page.html, chapter.html, and main.html).
If you comment out 1.2.15/angular.min.js, angular-route.js and .module('testNgRoute', ['ngRoute']) and uncomment 1.0.1/angular.min.js and .module('testNgRoute', []). It will work.
page.html contains only one line "This is page.html"
chapter.html contains only one line "This is chapter.html"
main.html contains only one line "This is main.html"
This is my index.html file
<!DOCTYPE html>
<html ng-app="testNgRoute">
<title>Test ng-route</title>
<body>
<div>
<h1>Test ng-route</h1>
<div ng-view></div>
</div>
</body>
<!--it works when I use this version of angularJS-->
<!--<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js"></script>-->
<!--it didn't work when I use this version of angularJS-->
<!-- According to the documentation, I should include angular-route.js-->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular-route.js"><script>
<script>
angular
//it works when I use v1.0.1 and without including any dependencies.
//.module('testNgRoute', [])
//it didn't work when I use v1.2.15 with the "ngRoute" dependencies
.module('testNgRoute', ['ngRoute'])
.config(['$routeProvider', function ($routeProvider) {
"use strict";
$routeProvider
.when('/page', {
templateUrl: "page.html"
})
.when('/chapter', {
templateUrl: 'chapter.html'
})
.when('/', {
templateUrl: 'main.html'
});
}]);
</script>
</html>
This is a rookie mistake. The angular-route.js script tag is not close properly. Thanks tasseKATT for spotting it.
False alarm. I've tested it and it is working correctly.

How to initialize controllers manually after bootstrapping angular app using angular.bootstrap?

Found solution to this question.
I have a normal javascript app.I want to embed my angularjs app into it by bootstrapping manually.The problem is that "controllers with that module is not at all initialized"
index.html:
<html>
<head> <title>Including angular app into another</title> </head>
<body>
//I have normal javascript app
<div>First App</div>
<div id="secondApp">
<div class="container" ng-include="'views/main.html'" ng-controller="MainCtrl"> </div>
</div>
//included all libraries required for the app
<script src="jquery.js"></script>
<script src="angular.js"></script>
//main.js
<script src="scripts.js"></script>
</body>
</html>
scripts.js:
angular.module('sampleApp', []);
// in this way, i have bootstrapped the app
angular.bootstrap(document.getElementById('secondApp'), ['sampleApp']);
angular.module('sampleApp')
.controller('MainCtrl', function($scope, $rootScope, $timeout) {
//i have included the functionality required for my second app
});
But it is not embedding angular app into first app, getting an error "Argument 'MainCtrl' is not a function, got undefined"
I don't understand, where i am doing wrong.
Just bootstrap the whole app in index.html instead of doing this in scripts.js like this
<script type="text/javascript">
angular.element(document).ready(function() {
angular.bootstrap(document.getElementById('secondApp'), ['assetWidgetApp']);
});
</script>
Thanks!!!
The order of the statements is wrong. It should be:
angular.module('sampleApp', []);
angular.module('sampleApp')
.controller('MainCtrl', function($scope, $rootScope, $timeout) {
//i have included the functionality required for my second app
});
// in this way, i have bootstrapped the app
angular.bootstrap(document.getElementById('secondApp'), ['sampleApp']);
You need to define the controller before you bootstrap the angular app.

Angular routeProvider not loading next template

I am trying to have each item in a list have a button that uses $routeProvider to route to a template. However, I keep getting 404s when I hit the link (it goes to the right address, but no page loads). Any help on getting this code to work would be most appreciated:
angular.module('tipOutput', ['firebase', 'filters'])
.controller('Tips', ['$scope', 'angularFire',
function ($scope, angularFire) {
var ref = new Firebase('https://sitename.firebaseio.com/tips');
angularFire(ref, $scope, "tips");
}])
//routing to secondary pages
.config(['$routeProvider', function($routeProvider, $locationProvider) {
$routeProvider.
when('/tips/:tipId', {template: 'partials/tip-detail.html', controller: 'Tips'}).
otherwise({redirectTo: '/'});
}])
And, in case it helps, here's the code of my template:
<html ng-app="TipOutput">
<body>
<div ng-view></div>
<script type="text/javascript" src="http://static.firebase.com/v0/firebase.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular-resource.min.js"></script>
<script src="https://cdn.firebase.com/libs/angularfire/0.3.0/angularfire.min.js"></script>
<script type='text/javascript' src='https://cdn.firebase.com/v0/firebase-simple-login.js'></script>
<script src="js/app.js"></script>
</body>
</html>
Routes in a single page app are really virtual routes. How does the webserver software know what to do with that url? What are you doing to map this url to the html file that is serving your app? I suspect you might need to setup your httpd so that it understands what is going on.

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