My task is to show Hello, Angular! in the browser, using AngularJS.
This is my HTML:
<!DOCTYPE html>
<html ng-app>
<head>
<title>Introduction to AngularJS Application</title>
<script src="Scripts/MyScripts/Example01Scripts.js"></script>
</head>
<body ng-controller="MainController">
<h1>{{message}}</h1>
</body>
</html>
This is my JavaScript:
/// <reference path="../angular.js" />
var MainController = function ($scope) {
$scope.message = "Hello, Angular!";
};
And here's what I'm getting:
This is my expected result:
<!DOCTYPE html>
<html ng-app>
<head>
<title>Introduction to AngularJS Application</title>
<script src="Scripts/MyScripts/Example01Scripts.js"></script>
</head>
<body ng-controller="MainController">
<h1>Hello, Angular!</h1>
</body>
</html>
The interpolation isn't functioning correctly. Why is this, and how can I fix it?
I have taken your code and updated it. You were missing the app name in ng-app. Click Run code snippet to see it working.
angular.module('myApp', []).controller('MainController', function($scope){
$scope.message = "Hello, Angular!";
});
<html ng-app="myApp">
<head>
<title>Introduction to AngularJS Application</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
</head>
<body ng-controller="MainController">
<h1>{{message}}</h1>
</body>
</html>
On the HTML you're missing the Angular source code and your app name on ng-app directive.
On the JS you're missing the module declaration.
HTML should be something like
<!DOCTYPE html>
<html ng-app="MyApp">
<head>
<title>Introduction to AngularJS Application</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<script src="Scripts/MyScripts/Example01Scripts.js"></script>
</head>
<body ng-controller="MainController">
<h1>{{message}}</h1>
</body>
</html>
and your Example01Scripts.js should be something like:
angular.module('MyApp', []).controller('MainController', function($scope){
$scope.message = "Hello, Angular!";
});
Looks like the module was missing. Have created a wee test script that will do what you wanted.
Code example here
Related
Here i try to Angular setup in html page for that i wrote simple code as Below
MyApp.js
/// <reference path="angular.js" />
var app = angular.module('MyApp', [])
debugger;
app.controller('HomeCtrls', function ($scope) {
$scope.msg = "This is MyApp....";
})
Master.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head ng-app="MyApp">
<title></title>
<script src="../../Script/angular.js"></script>
<script src="../../Script/MyApp.js"></script>
</head>
<body ng-controller="HomeCtrls">
{{msg}}
</body>
</html>
Here why my msg is not Loading This is MyApp....
ng-app inject wrong place. Not <head ng-app="MyApp">, Inject html or body or div tag as per your web application need.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="../../Script/angular.js"></script>
<script src="../../Script/MyApp.js"></script>
</head>
<body ng-app="MyApp" ng-controller="HomeCtrls">
{{msg}}
</body>
</html>
the problem is with your angular script, is not loaded, check your path, you can use the CDN also :
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
I am new in angularjs, so i try this script in Index.html like this:
<!DOCTYPE html>
<html lang="en" ng-app="DEMO">
<head>
<title></title>
</head>
<body>
<h1 ng-controller="HelloWorldCtrl">{{HelloMessage}}</h1>
<script src="angular.min.js"></script>
<script type="text/javascript">
function HelloWorldCtrl($scope) {
$scope.HelloMessage = "Hello Pejman";
}
</script>
</body>
</html>
but when i run this, it show {{HelloMessage}} instead of Hello Pejman , what is the problem?
EDIT : this is the tutorial:
You did not bootstrap angular module, that is why your code doesnt work. You must call ng-app in any HTML tag to notify Angular start in there. So all of the sub tags under the tag Angular declared will be able to use directives, scope, controller etc.
Please check here to understand how to create controller and use it : https://docs.angularjs.org/guide/controller
Try this:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Hello World</title>
<script src="angular.min.js"></script>
</head>
<body>
<h1 ng-app="demo" ng-controller="HelloWorldCtrl">{{HelloMessage}}</h1>
<script type="text/javascript">
var app = angular.module('demo', []);
app.controller('HelloWorldCtrl', function($scope) {
$scope.HelloMessage = "Hello Pejman";
});
</script>
</body>
</html>
I'm trying to make my AngularJS HelloWorld work but I can't. My code is the following:
<!DOCTYPE html>
<html np-app="myApp">
<head>
<meta charset="UTF-8">
<title>Angular Test</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<script>
var app = angular.module("myApp",[]);
app.controller("appCtrl",function($scope){
$scope.mensagem="HelloWorld!";
});
console.log(angular);
console.log(app);
</script>
</head>
<body>
<div ng-controller="appCtrl">
{{mensagem}}
</div>
</body>
The output:
{{mensagem}}
I searched about similar questions here in SO but found only questions with a missing ng-app atribute.
I tried opening my file both in Firefox and Chrome and I get the same error. Logging both angular and app reveal that they are both defined.
I don't know what I'm doing wrong.
In your HTML tag, you've misspelled ng-app, which is probably the main reason it's not working. You should also place the include for Angular down at the end of the body, which ensures the app and controller elements are defined before the script runs:
<html ng-app="myApp">
<head>
<meta charset="UTF-8">
<title>Angular Test</title>
</head>
<body>
<div ng-controller="appCtrl">
{{mensagem}}
</div>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<script>
var app = angular.module("myApp",[]);
app.controller("appCtrl",function($scope){
$scope.mensagem="HelloWorld!";
});
console.log(angular);
console.log(app);
</script>
</body>
</html>
I am following a tutorial but stuck on one issue. I don't know what I am missing here.
//script.js
var MainController = function($scope)
{
$scope.message = "Hello!!!!";
};
<!-- index.html -->
<!DOCTYPE html>
<html ng-app>
<head>
<script data-require="angular.js#1.3.4" data-semver="1.3.4" src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="MainController">
<h1>{{message}}</h1>
</body>
</html>
Problem is -
The message is not binding.
Create your module first, then add the controller to the module, specify both the app and controller in your HTML portion.
<!DOCTYPE html>
<html ng-app="app">
<head>
<script data-require="angular.js#1.3.4" data-semver="1.3.4" src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>
<script>
var app = angular.module('app',[]);
var MainController1 = function($scope)
{
$scope.message = "Hello!!!!";
};
app.controller("MainController1", MainController1);
</script>
</head>
<body ng-controller="MainController1">
<h1>{{message}}</h1>
</body>
</html>
What is the Simplest 'Hello World' in AngularJS for a beginner. So far I have this:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div data-ng-app="">
{{'Hello World' }}
</div>
<script src="angular.js"></script>
</body>
</html>
Simplest Hello World that shows 2-way databinding
<!doctype html>
<html lang="en" ng-app>
<head>
<title> Hello World </title>
</head>
<body ng-controller="MainCtrl">
<h1>{{helloWorld}}</h1>
<input type="text" ng-model="helloWorld"></input>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js"></script>
<script type="text/javascript">
function MainCtrl($scope){
$scope.helloWorld = "Hello World";
}
</script>
</body>
</html>
edit:
A bit of explanation on what is what and why this is (in my view) a minimal Hello World app showcasing the power of AngularJS
The AngularJS library needs to be included
The custom attribute ng-app is added to kick of the angular application. This directive signals AngularJS to auto-bootstrap an application
The ng-controller directive is added and it's associated javascript function shows exposing an object by assigning it to the injected $scope
The double brackets expression {{helloWorld}} shows the convention used by AngularJS to output model values.
The ng-model directive is used to bind the helloWorld object and shows the power of AngularJS two-way datababinding
Simplest AngularJS 'Hello World' - "The Good Way"
<!doctype html>
<html data-ng-app="myApp">
<head>
<!-- .... -->
</head>
<body>
<div data-ng-controller="MyController">
<input type="text" data-ng-model="name" />
<p>Hello {{name}}</p>
</div>
<script src="angular.js"></script>
<script>
var myApp = angular.module("myApp", []);
myApp.controller("MyController", ["$scope", function($scope) {
$scope.name = "World";
}]);
</script>
</body>
</html>
Found on prettycode.org:
<!doctype html>
<html ng-app>
<head>
<title> Hello World </title>
</head>
<body>
Your name: <input type="text" ng-model="name"></input>
<p ng-show="name">Hi, {{ name }}!</p>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.js">
</script>
</body>
</html>