I'm a beginner, I have a simple Angular JS that's not working, I don't understand why, here is my code (the two files index.html & script.js are in the same folder):
index.html :
<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="script.js"></script>
<body ng-app>
<p>Name: <input type="text" ng-model="name"></p>
<p ng-bind="name"></p>
<div ng-controller="MainController">
{{message}}
</div>
</body>
</html>
script.js :
var MainController = function($scope) {
$scope.message = "Hello";
};
The ng-model is working, the name that I write in the textbox gets displayed, but I get {{message}} instead of the actual message Hello that I have in the scope of the controller.
Thank you in advance.
Name your app
<body ng-app="myApp">
Create an app.js
var app = angular.module("myApp", []);
Rename script.js to MainController.js , (Don't have to, but for a clean development)
app.controller('MainController', ['$scope', function($scope) {
$scope.message = "Hello";
}]);
Related
Should be a basic solution but for the life of me I don't see what is wrong.
I am attempting to run an Angular JS application and I am getting a runtime error:
JavaScript runtime error: 'angular' is undefined
Here is my code below.
(function() {
var app = angular.module('MyApp', []);
app.controller('MyAppController', function($scope) {
$scope.message = "Hello, World!";
});
}());
<!doctype html>
<html ng-app>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
<script src="js/main.js"></script>
</head>
<body>
<h1> Angular JS App </h1>
<div ng-app="MyApp" ng-controller="MyAppController">
<label> {{message}} </label>
</div>
</body>
</html>
Thank you in advance!
You placed your ngApp directive twice in your view template.
https://plnkr.co/edit/cSTHyVqMHFVw8ht9mkIr
<body ng-app="app">
<h1> Angular JS App </h1>
<div ng-controller="ctrl">
<label> {{message}} </label>
</div>
</body>
Declaring once will solve your issue.
http://codepen.io/krabbypattified/pen/oYxmKz
View above Codepen. The Chrome DevTools console returns Error: [$injector:modulerr]. The same error occurs when script area is commented.
However, when script area is commented and the (identical) JS section is uncommented, Angular works fine with no errors. Why does this happen??
Note: I have a large application and isolated the bug to this phenomenon. I'm using a Prepros server and I'm getting this same annoying $injector error.
<div ng-app="testApp">
<div ng-controller="testController">
<h1>{{title}}</h1>
</div>
</div>
<script>
var app = angular.module('testApp',[]);
app.controller('testController', function($scope){
$scope.title = "Hello, World!";
});
</script>
<div ng-app="testApp">
<div ng-controller="testController">
<h1>{{title}}</h1>
</div>
</div>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.min.js"></script>
<script>
var app = angular.module('testApp', []);
app.controller('testController', function($scope) {
$scope.title = "Hello, World!";
});
</script>
Your angularjs library reference is not applied to your code.
In codepen,Attach your script in HTML rather than mentioning in settings window,
CODEPEN DEMO
Problem is codepen in HTML window you can have only HTML code,
Check here it works,
<body>
<div ng-app="testApp">
<div ng-controller="testController">
<h1>{{title}}</h1>
</div>
</div>
<script>
var app = angular.module('testApp', []);
app.controller('testController', function($scope) {
$scope.title = "Hello, World!";
});
</script>
</body>
DEMO
Codepen adds the code after the HTML, so the script you have initializing Angular won't have access to angular. If you change to this it will work.
<div ng-app="testApp">
<div ng-controller="testController">
<h1>{{title}}</h1>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.min.js"></script>
<script>
var app =
angular.module('testApp', []).controller('testController', function($scope){
$scope.title = "Hello, World!";
});
</script>
I had already declared my app and controller in separate file and below is how i am loading my controller html DOM but it is not showing that message. Can someone please guide how to achieve this.
HTML:
<div id="bnProblemList">
<div ng-controller="problemListCtrl" data-ng-init="init()">
<div ng-view="">this is my message = {{message}}</div>
</div>
</div>
JS:
html = $j('#bnProblemList').html();
$compile(html)(scope);
Please let me know how to inject or load ng-controller html dynamically.
Your controller declaration is wrong. You should do it like this:
var myApp = angular.module('myApp',[]);
myApp.controller('problemListCtrl', ['$scope',
function($scope) {
$scope.message = "This is my message :-)";
}
]);
A proper way is to declare your Controller into an anonymous function, and add it to a module. Then, you have to set your ngApp.
Controller.js
Here, we will declare our controller, and create an app module. Then, we will declare ctrl as our controller into our app module.
(function(){
function Controller($scope) {
$scope.name = 'toto';
}
angular
.module('app', [])
.controller('ctrl', Controller);
})();
HTML
<body ng-app='app' ng-controller="ctrl">
<p>My name is {{name}}</p>
</body>
And don't forget to include your script tag :
<script src="controller.js"></script>
You can try Like below Example:-
Html Page:
<!DOCTYPE html>
<html ng-app="MyApp">
<head>
<title> Controller</title>
<script src="../Js/angular.min.js"></script>
<script src="../Js/Controller.js"></script>
</head>
<body>
<div ng-controller="MyFirstController">
{{ Msg }}
</div>
</body>
</html>
ControllerJs Page:
var MyApp=angular.module("MyApp",[]);
MyApp.controller("MyFirstController",function($scope){
$scope.Msg="Hello First Conroller";
})
i was able to load/ inject controller dynamically by the help of below code
<div id="bn" ng-controller="myCtrl as vm">
<div ui-view=''></div>
</div>
<script>
angular.element(document).injector().invoke(function($compile, $state) {
$state.go('myCtrl');
var scope = angular.element($j("#bn")).scope();
$compile($j("#bn"))(scope);
});
</script>
Below is my very simple example where I am trying to implement controller.
{{8/2}} is giving correct output i.e. 4 but {{message}} remains same.
It should be replaced by some value e.g. First Controller
I downloaded the angular js from https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js
HTML
<!DOCTYPE html>
<html ng-app>
<head>
<script src="angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body>
<h1>{{8/2}}</h1>
<div ng-controller="HomeController">
{{message}}
</div>
</body>
</html>
Script.js
var HomeController = function($scope) {
$scope.message = "First Controller";
};
I downloaded the angular js from
https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js
Well angularjs version 1.4x does not support raw functions controllers to be used as controllers. change the angularjs version to 1.2.x OR use angular.module('someName').controller() syntax to make it work.
Here's the same plunkr you shared(with angularjs 1.2.8)
Here's the plnkr with angular.module() syntax
Update your html from
<html ng-app>
to
<html ng-app="myApp">
Update your script.js to
angular.module("myApp", []).controller("HomeController", function($scope){
$scope.message = "First Controller";
});
replace your Script.js with this
var ng_app = angular.module('ng_app',[]);
ng_app.controller('HomeController', ['$scope', function($scope) {
$scope.message = "First Controller";
}]);
edit ng-app in your html to ng-app='ng_app'
There was a problem with your angular version If you will use a older version then it works fine
<html>
<head>
<meta charset="utf-8">
<title>AngularJS Plunker</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.js"></script>
</head>
<body ng-app>
{{8/7}}
<div ng-controller="HomeController">
{{message}}
</body>
</html>
<script >
// Code goes here
var HomeController = function($scope) {
$scope.message = "First Controller";
};
</script>
You are using old syntax that is no longer supported.Instead of defining controller as var. Add ng-app="app", then create a module
var myApp = angular.module('app',[]);
Now define your controller -
myApp.controller("HomeController",function($scope){
$scope.message = "Hello";
});
Hi I am having trouble with this tutorial. I copied over the code but for some reason it is not working.
This is the html code
<!DOCTYPE html>
<html ng-app>
<head>
<title>Simple app</title>
<script
src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.6/angular.js">
</script>
</head>
<body>
<div ng-app="myApp">
<div ng-controller = "MyController">
<h1>{{ person }}</h1>
and their name:
<h2> {{person.name}}</h2>
</div>
</div>
<script type="text/javascript" src="app.js"></script>
</body>
</html>
and here is the JS
var app = angular.module('app', []);
app.controller('MyController', function($scope) {
$scope.person = {
name: "Ari Lerner"
};
});
It doesn't look like the AngularJS code is being recognized. Any ideas?
Your app name in the module definition:
var app = angular.module('app', []);
doesn't match the one you reference in your dom:
<div ng-app="myApp">
Change your module definition to:
var app = angular.module('myApp', []);