I am trying to create a Hello World page in angular.js.But it displays: {{helloMessage}} instead of Hello World. Could not understand, where is the problem.
The folder contains two files: angular.min.js and HelloWorld.html. I wrote following code in HelloWorld.html:
<!doctype html>
<html lang = "en" ng-app>
<head>
<meta charset = "utf-8">
<title> Hello World </title>
</head>
<body>
<h1 ng-controller = "HelloWorldCtrl">{{helloMessage}}</h1>
<script src = "angular.min.js"></script>
<script type = "text/javascript">
function HelloWorldCtrl($scope){
$scope.helloMessage = "Hello World";
}
</script>
</body>
</html>
Your controller is not set up correctly. It needs to be bound to your angular app. First you need to name the app:
<html ng-app='myApp'>
Then change your script like so:
angular.module('myApp', []).controller('HelloWorldCtrl',
function($scope) {
$scope.helloMessage = "Hello World";
}
);
Refer to the docs: https://docs.angularjs.org/api/ng/directive/ngApp
You're simply creating a function HelloWorldCtrl, but not assigning it to a controller. Check the documentation.
You should do it like this:
var myApp = angular.module('myApp',[]);
myApp.controller('HelloWorldCtrl', ['$scope', function($scope) {
$scope.greeting = "Hello World";
}]);
Related
Hi Im trying to write an angular app from scratch. (New to it) Keep getting an error that secondController is not registered. Why?
These are my three files and for some reason it keeps saying "The controller with the name 'secondController' is not registered."
index.html
<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="./angular.js"></script>
<script src="./secondModule.js"></script>
<script src="./app.js"></script>
</head>
<body>
<div ng-controller="appController">
<p>App text : {{myAppText}}</p>
<p>secondControllerModule: {{ secondControllerText }}</p>
</div>
<div ng-controller="secondController">
Second Module : {{secondControllerText}}
</div>
</body>
</html>
app.js
angular.module("myApp", [])
.controller("appController",["$scope", function($scope){
$scope.myAppText = "Hello, I am appController text"
}])
secondModule.js
angular.module("myApp", [])
.controller("secondController",["$scope", function($scope){
$scope.secondControllerText = "Hello, I am seasdfsdfasdfacond Controller Text"
}])
I think as per your code you should take three files
1. Declare angular module in module.js file
var app = angular.module("myApp", []);
Add the first controller appController.js
app.controller("appController",["$scope", function($scope){
$scope.myAppText = "Hello, I am appController text";
}]);
Add second controller file secondController.js
app.controller("secondController",["$scope", function($scope){
$scope.secondControllerText = "Hello, I am seasdfsdfasdfacond Controller Text";
}]);
now put them in this heirarchy
- Add ref of Angular JS
then
1 module.js
2 appController.js
3 secondController.js
First of all, I would like to clarify that this is incorrect:
<div ng-controller="appController">
<p>App text : {{myAppText}}</p>
<p>secondControllerModule: {{ secondControllerText }}</p>// Defined in the wrong ng-controller,
so move it to the correct one.
</div>
The reason you are getting that error is that you're defining the app module twice in your js files. It's rather simple, all you need to do is take off the second parameter in your secondModule.js
angular.module("myApp")// Needs to be like this
.controller("secondController",["$scope", function($scope){
$scope.secondControllerText = "Hello, I am seasdfsdfasdfacond Controller Text"
}])
Then in your app.js file
angular.module("myApp", [])
.controller("appController",["$scope", function($scope){
$scope.myAppText = "Hello, I am appController text"
}])
Then in your HTML file, you need to fix the order of the script
<script src="./angular.js"></script>
<script src="./app.js"></script> // App module must be first because the module is defined here
<script src="./secondModule.js"></script>
I have a string like var message = "you are moving to {{output.number}}";
I want this to be put to div element. i tried using $("#message").html(message);
but it just printed the whole string for me. I want to have the output.number print the value it had. Is it possible to achieve what i want?
I am using angular.js 1.5.
Use $interpolate service like:
var message = $interpolate("you are moving to {{number}}")(output)
// or
var message = $interpolate("you are moving to {{output.number}}")($scope)
I hope you are looking for something like this. You can do it by using the scope variable inside the controller.
<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.bootcss.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<input type="number" ng-model="output.number" />
<button ng-click="AppendItem()">Append</button>
<div id="message"></div>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope) {
$scope.output = {};
$scope.AppendItem = function () {
var string = "Your Number is " + $scope.output.number;
$("#message").html(string);
}
});
</script>
</body>
</html>
You are almost there just try :
$scope.output.number = '123';
var message = "you are moving to" + output.number;
$("#message").html(message);
Don't put variable inside "" quotes.
When we are going to append a string variable to another string variable then we need to use append operator ie., "+". Here is an example.
var output.number = 10;
var message = "you are moving to " + output.number;
$("#message").html(message);
You can do like this using $compile:
$compile(angular.element(document.querySelectorAll('#message')[0]).html("you are moving to {{output.number}}"))($scope);
Add $compile as dependency in your controller.
All the best.
You can try this:
<html ng-app="app">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body ng-controller="appCtrl">
<p id="message"></p>
<script src="https://code.jquery.com/jquery-1.9.1.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.0/angular.min.js"> </script>
</body>
JS:
Should not write DOM Manipulation code inside controller, but can get the idea how to do it.
var app = angular.module('app', []);
app.controller('appCtrl', function($scope, $interpolate){
var msg = "you are moving to {{number}}";
$scope.number = 10;
$('#message').html($interpolate(msg)($scope));
});
I am using AngularJS configured in STS (Eclipse). How we can fixed this error?
Cannot find controller with name NameCtrl.
HTML
<html ng-app>
<head>
<meta charset="ISO-8859-1">
<title>AJ Example</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0-rc.0/angular.min.js" ></script>
<script>
function NameCtrl($scope){
$scope.firstName = 'John';
$scope.lastName = 'Smith';
}
</script>
</head>
<body ng-controller="NameCtrl">
First name:<input ng-model="firstName" type="text"/>
<br>
Last name:<input ng-model="lastName" type="text"/>
<br>
Hello {{firstName}} {{lastName}}
</body>
</html>
From angular vs1.3.x you have to bind controller with module in order to use.
Like this
angular
.module("app",[])
.controller("NameCtrl",function($scope){
$scope.firstName = 'John';
$scope.lastName = 'Smith';
})
Add module name in html
<html ng-app="app">
JSFIDDLE
1.You need to define an angular app first (named'myApp' here).
2.Define an angular module inside that app.
3.Define a controller inside that module.
4.Bind that module to your controller, and your controller to angulaJS app.
var app = angular.module("myApp", []);
app.controller("NameCtrl", function($scope) {
$scope.firstName = "John";
$scope.lastName = "Smith";
});
I have the below code in a html page, running it though I keep getting an error stating that "angular is not defined" I have included angular in the head so i'm not sure why it can't locate it, the url to angular i'm also able to hit directly.
<!DOCTYPE>
<html ng-app="test">
<head>
<title>
<script src="https://code.angularjs.org/1.2.25/angular.js"></script>
</title>
</head>
<body ng-controller="TestController">
<form name="CopyFile" ng-submit="copy(fileId)">
<input type="text" ng-model="fileId"/>
<input type="submit" value="Copy"/>
</form>
<div>{{ message }}</div>
<div>{{ error }}</div>
<script type="text/javascript">
(function () {
var app = angular.module("test", []);
var testController = function ($scope, $http) {
$scope.copy = function (fileId) {
$http.get("http://localhost/test/copy/prod.aspx/ToProd?fileId=" + fileId)
.then(onComplete, onError);
};
var onComplete = function (response) {
$scope.message = response;
};
var onError = function (reason) {
$scope.error = "File could not be copied " + reason;
};
};
app.controller("TestController", ["$scope", "$http"], testController);
} ());
</script>
</body>
</html>
This may not be the cause but you don't want your angular include inside of your title. It should be something more like this:
<!DOCTYPE>
<html ng-app="test">
<head>
<title>My Page</title>
<script src="https://code.angularjs.org/1.2.25/angular.js"></script>
</head>
.....
You gave <script> inside <title>?
<title>
<script src="https://code.angularjs.org/1.2.25/angular.js"></script>
</title>
Please remove it outside.
Searched far and wide, most of the answers were "you forgot to include your controller".
"Error: [ng:areq] Argument 'AdamState' is not a function, got undefined"
HTML:
<!DOCTYPE html>
<html>
<head>
<title>Adam Home</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.js"></script>
<script src="Scripts/AdamState.js"></script>
</head>
<body ng-app="">
<div ng-controller="AdamState">
</div>
</body>
</html>
JS:
function AdamState($scope, $http) {
$scope.test = 1;
}
Also, when calling that function from the console it will be called.
Angular 1.3+ global controller functions are turned off.
So you need to bind your controller to module,
Controller
var app = angular.module('app',[])
app.controller('AdamState',[`$scope`, `$http`, AdamState])
function AdamState($scope, $http) {
$scope.test = 1;
}
Or you need to declare controller as global controller then do allow global controller function manually form app.config() that is in angular config phase, the below code will make your code working.
CODE
app.config(['$controllerProvider', function($controllerProvider) {
$controllerProvider.allowGlobals();
}]);
Thanks.
You miss lots of code there, this should eventually help you get started:
var myApp = angular.module("myApp", []);
myApp.controller("AdamStateCtrl", function($scope) {
$scope.test = 1;
});
<!DOCTYPE html>
<html>
<head>
<title>Adam Home</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.js"></script>
<script src="Scripts/AdamState.js"></script>
</head>
<body ng-app="myApp">
<div ng-controller="AdamStateCtrl">
{{test}}
</div>
</body>
</html>