AngularJS simple "Hello, world" not working - angularjs

Trying to follow a tutorial, I can't get the "Hello, world" example working. Instead it displays: "{{greeting.text}}, world". Using Chrome and AngularJS 1.3.1.
index.html:
<!DOCTYPE html>
<html ng-app>
<head>
<script src="angular.js"></script>
<script src="app.js"></script>
<!--<link rel="stylesheet" type="text/css" href="bootstrap.min.css" />-->
</head>
<body>
<div ng-controller='HelloController'>
<p>{{greeting.text}}, world </p>
</div>
</body>
</html>
app.js
function HelloController($scope) {
$scope.greeting = { text: 'Hello' };
}
My folder structure
root/
angular.js
app.js
index.html
Thank you

I hope this helps.
index.html
<!DOCTYPE html>
<html ng-app="appname">
<head>
<script src="http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.20/angular.min.js"></script>
<link href="style.css" rel="stylesheet"/>
<script src="script.js"></script>
</head>
<body>
<div ng-controller="appCtrl">
<p>{{greeting.text}}, world </p>
</div>
</body>
</html>
script.js
var appname = angular.module('appname', []);
appname.controller('appCtrl', ['$scope',
function($scope) {
$scope.greeting = { text: 'Hello' };
}]);
http://plnkr.co/edit/XmliRcmsZvuQimHoyjN5?p=preview

Answering the question of what is wrong and if they changed something.
AngularJs Version 1.2 or older: The controller could be a function not defined into a module. Like in the question.
Controller
function HelloController($scope) {
$scope.greeting = { text: 'Hello' };
}
Angular Version 1.3 or newer: The controller must be defined into a module. Like in the answer.
Controller
var appname = angular.module('appname', []);
appname.controller('appCtrl', ['$scope',
function($scope) {
$scope.greeting = { text: 'Hello' };
}]);

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.16/angular.min.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="myCntrl">
Enter text:
<br />
<input type="text" ng-model="hellomodel" />
<br />
<br />
<h1>
{{hellomodel}}</h1>
<script language="javascript">
var myapp = angular.module("myApp", []);
myapp.controller("myCntrl", function ($scope) {
$scope.hellomodel = "Hello World!";
});
</script>
</div>
</body>
</html>
http://dotnetlearners.com/blogs/view/222/AngularJS-Hello-World.aspx

The accepted answer is good but I thought I'd chip in with some resources I've found helpful if you're looking for a better understanding of how things work in Angular
Egghead.io - www.youtube.com/playlist?list=PLP6DbQBkn9ymGQh2qpk9ImLHdSH5T7yw7
Shaping up with Angular www.codeschool.com/courses/shaping-up-with-angular-js
Both are completely free courses and because the egghead.io playlist is split into videos for separate concepts it's also really good reference material.
The angular.js developer guide is also really helpful!

Related

AngularJs not compiling

I created a basic AngularJS app and it's not displaying the values on the live site declared on the controller.
The live site displays the expressions written on the controller file instead.
ie. - It displays:
{{ title }}
{{ paragraph }}
Instead of:
First Angular Title
First Angular Paragraph
index.html:
<!DOCTYPE html>
<html>
<head>
<title>Angular Application</title>
<script src="js/shared/angular.min.js"></script>
</head>
<body ng-app="mainApp">
<div ng-controller="MainController">
<h1> {{ title }} </h1>
<p> {{ paragraph }}<p>
</div>
<!-- Modules -->
<script src="js/app.js"></script>
<!-- Controllers -->
<script src="js/controllers/MainController.js"></script>
</body>
</html>
MainController.js
app.controller("MainController", ['$scope', function($scope) {
$scope.title = "First Angular Title";
$scope.paragraph = "First Angular Paragraph";
}]);
app.js
var app = angular.module("mainApp", []);
I don't know what I'm doing wrong. I'm completely new to this. I appreciate any help. Thanks for your time.
I have included the angular from cdn and updated the inline script the same working. please verify included files are loading properly.
<!DOCTYPE html>
<html>
<head>
<title>Angular Application</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.6/angular.min.js"></script>
</head>
<body ng-app="mainApp">
<div ng-controller="MainController">
<h1> {{ title }} </h1>
<p> {{ paragraph }}<p>
</div>
<!-- Modules -->
<script type="text/javascript">
var app = angular.module("mainApp", []);
app.controller("MainController", ['$scope', function($scope) {
$scope.title = "First Angular Title";
$scope.paragraph = "First Angular Paragraph";
}]);
</script>
</body>
</html>
</body>
</html>

Difficulty with Angular controller usage from old tutorial

I'm going through a basic book for Angular, and it uses a controller to set up a field. However, I don't get the expected output. Searching here and elsewhere, it looks like I'm invoking it correctly, but something's not working. Anything obviously wrong? Anything else to try? Details below. Thanks.
Document html:
<html lang="en" ng-app ng-controller="AppCtrl">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="css/bootstrap.min.css">
<title></title>
<script src="js/angular.min.js"></script>
<script type="text/javascript" src="js/controller.js"></script>
</head>
<body>
<h1>Hello, {{name || 'World'}}</h1>
<input type="text" ng-model="name">
</body>
controller.js:
function AppCtrl($scope) {
$scope.name = "World";
(function closing brace lost by code formatting)
Expected output is "Hello, World", but I get "Hello, {{name || 'World'}}"
You are missing the ng-app and the module in controller.
var app = angular.module('myApp', []);
DEMO
var app = angular.module('myApp', []);
app.controller('AppCtrl', function($scope, $http) {
$scope.name = "World";
});
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<div ng-app="myApp" ng-controller="AppCtrl">
<h1>Hello, {{name || 'World'}}</h1>
<input type="text" ng-model="name">
</div>
</body>
</html>

AngularJS failing to load module

I have come across a lot of similar issues here on SF and did everything as expected. Yet, I can't seem to get this simple Angular app working. Console throws up this exception
angular.min.js:6 Uncaught Error: [$injector:modulerr]
AngularJS site docs gave some suggestions which I followed. Yet, I still get that same exception. Here is my code.
<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
<meta charset="utf-8">
<title>Dead Simple Proj</title>
<link rel="stylesheet" href="content/css/styles.css">
<script scr="app\app.js"></script>
<script src="app\lib\angular.min.js"></script>
</head>
<body>
<div ng-controller="GreetingController">
{{ greeting }}
</div>
</body>
</html>
I have this in the App.js
var myApp = angular.module('myApp', []);
myApp.controller('GreetingController', function($scope) {
$scope.greeting = 'Hola!';
});
I double checked file paths and other possibly obvious mistakes, but no joy.
I am definitely missing out something here? Thanks.
Your paths referencing the libraries and the app.js are wrong and in the wrong order . You should load the angular reference first and then the relative js referencing the module.
Change
From
<script scr="app\app.js"></script>
<script src="app\lib\angular.min.js"></script>
To
<script src="app/lib/angular.min.js"></script>
<script scr="app/app.js"></script>
DEMO
var myApp = angular.module('myApp', []);
myApp.controller('GreetingController', function($scope) {
$scope.greeting = 'Hola!';
});
<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
<meta charset="utf-8">
<title>Dead Simple Proj</title>
<link rel="stylesheet" href="content/css/styles.css">
<script type=" text/javascript " src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.6/angular.js "></script>
</head>
<body>
<div ng-controller="GreetingController">
{{ greeting }}
</div>
</body>
</html>
I dont think you added your angular files properly. I made a plunker out of your code and it worked. you can cross check with my code.
var myApp = angular.module('myApp', []);
myApp.controller('GreetingController', function($scope) {
$scope.greeting = 'Hola!';
});
<html ng-app="myApp">
<head>
<script data-require="angular.js#1.6.2" data-semver="1.6.2" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.2/angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="GreetingController">
<h1>Hello {{greeting}}!</h1>
</body>
</html>

Referencing local angular.js does not work

I'm beginning to work with AngularJS and am having trouble working with a local copy of the angular.js file. Below is the sample I am trying to get to work. When I reference the CDN script, the page correctly displays 'Hello, World'. When I reference the local script, the binding does not occur. The browser is able to locate the local angular.js file, it just doesn't seem to perform the binding.
<html ng-app>
<head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.4/angular.js"></script>
<!--<script src="Scripts/angular.js"></script>-->
<script>
function HelloController($scope) {
$scope.greeting = { text: "Hello" };
}
</script>
</head>
<body>
<div ng-controller="HelloController">
<p>{{greeting.text}}, World</p>
</div>
</body>
</html>
If I was starting out with 1.3.15 would do something like this:
<html ng-app="main.app">
<head>
<script src="https://code.angularjs.org/1.3.15/angular.js"></script>
<script>
angular.module('main.app', [])
.controller('HelloController', function () {
var self = this;
this.greeting = { text: "Hello" };
})
</script>
</head>
<body ng-controller="HelloController as HelloCtrl">
<p>{{HelloCtrl.greeting.text}}, World</p>
</body>
</html>
This follows the latest styles of angular coding

Egghead angular controller not working

I am trying to follow along on the eggheads angularJS tutorials. I have the same code however mine is not working...
Here is the code I am using:
index.html:
<!DOCTYPE html>
<html>
<head>
<title>AngularJS Tutorials</title>
<link rel="stylesheet" href="../foundation/css/foundation.min.css">
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div ng-app="">
<div ng-controller="FirstCtrl">
<h1>{{data.message + " world"}}</h1>
<div class="{{data.message}}">
Wrap me with a foundation component.
</div>
</div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>
</body>
</html>
main.js:
function FirstCtrl($scope) {
$scope.data = {message: "panel"};
}
The problem is angular version.
Your version is 1.3.4 instead of 1.2.3.
App with angular 1.2.3 (egghead) : plunkr
App with angular 1.3.4 :plunker
Hi you've missed couple thing
Declaration of you app :
var app = angular.module('app', []);
Declaration of your controller
app.controller('FirstCtrl', FirstCtrl);
In your html
ng-app="app"
var app = angular.module('app', []);
app.controller('FirstCtrl', FirstCtrl);
function FirstCtrl($scope) {
$scope.data = {
message: "panel"
};
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="app">
<div ng-controller="FirstCtrl">
<h1>{{data.message + " world"}}</h1>
<div class="{{data.message}}">
Wrap me with a foundation component.
</div>
</div>
</body>

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