js:
$scope.hello = "hello world";
html:
<input ng-model="hello">
<label>{{hello}}</label>
It sets the label good on initializing but after that it stop updating. What's wrong?
Try to use this in your controller:
$scope.system = {};
$scope.system.hello = 'hello world';
Here you Go
as per your code there were no clues for errors so i just answered with working code and some definition of 2-way data-binding
The updating is called two-way binding a good feature from angular .
Little Brief about 2 way data binding :-
Two way data binding in angularjs framework is approach to synchronize
the data between model and view. What it means that if there is any
change happens in model ( Back-end ) then view ( front-end ) will be
updated and vice versa.
data binding docs Angular data binding Documentation
Sample Js: -
'use strict';
var app = angular.module('mainApp', []);
app.controller('registerCtrl', ['$scope', function($scope){
$scope.hello='hello world';
}]);
Html :-
<!DOCTYPE html>
<html ng-app="mainApp">
<head>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<script src="script.js"></script>
</head>
<body ng-controller="registerCtrl">
<input type="text" ng-model="hello"/>
{{hello}}
</body>
</html>
You properly Binded to the text box with model
plunker https://plnkr.co/edit/go9r3x?p=preview
Related
Only the html output and the {{10 + 10}} of the web page is rendered. I'm not sure what what I'm doing wrong but I'm guessing it's some setup type issue in my visual studio project.
(function () {
var app = angular.module("ShipmentsHome", []);
var EditShipmentsController = function ($scope) {
$scope.message = "--Still need to create grid here--";
};
app.controller("EditShipmentsController", ["$scope", EditShipmentsController]);
}());
!DOCTYPE html>
<html>
<head>
<title>Shipments Home</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.10/angular.min.js"></script>
<script src="../../lib/home.js"></script>
</head>
<body ng-app="ShipmentsHome" ng-controller="EditShipmentsController">
<h1>Product Transfers</h1>
<p>Create or modify a transfer below:</p>
<div> {{message}}</div>
<p>look above for message from controller</p>
<h2>{{10 + 10}}</h2>
</body>
</html>
I am not seeing any errors in the console. Below is what I am seeing:
Probably the problem will be with your relative path. I got it working when I replace the script source with the actual controller script. please check your path and correct it.
Issue was the project I was working with was setup to use .ts files and not .js files. I needed to create the project to work with angularjs not typescript.
I am not getting the expected message when using value recipe.
I am getting output as {{message}}, but I am expecting "hai services are working!!"
Please share where I am going wrong.
HTML code: Injector.html
<!DOCTYPE html>
<html>
<head>
<title>Practicing Angular JS</title>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular.min.js"></script>
<script src="Injector.js"></script> <!-- Injector module file name -->
</head>
<body ng-app="injectormodule"> <!-- root module-->
<div ng-controller="controllerInjector">
{{message}}
<!-- controller name-->
</div>
</body>
</html>
Controller: Injector.js
var app = angular.module("injectormodule", ["servicemodule"])//name of service is servicemodule
.controller("controllerInjector", ["$scope", "message", function($scope, message){
$scope.message = message;
}]);
Service:(Value Recipe)
var myapp = angular.module("servicemodule", [])
.value("message", "hai services are working!!");
You have to define your servicemodule before your injectormodule, otherwise its creation will fail (since unable to find the servicemodule dependence).
Since the injectormodule failed from being created, the ng-app="injectormodule" will also be unable to bootstrap Angular on your DOM, thus won't interpret things like double brackets ({{ message }}).
Here is a working codepen.
You need to Inject your service into controller and need to create same module.
See this sample working fiddle which use service method to get text.
See other fiddle link also in comments
This question already has answers here:
Angularjs Uncaught Error: [$injector:modulerr] when migrating to V1.3
(5 answers)
Closed 6 years ago.
my controller.js file
function ServicesCtrl($scope) {
console.log("Hello From ServicesCtrl");
$scope.message = "Hello";
}
index.html file
<html>
<head>
<title>The MEAN Stack</title>
<link href="css/bootstrap.css" rel="stylesheet" />
<script src="js/angular.min.js"></script>
<script src="features/services/controller.js"></script>
</head>
<body ng-app="">
<div class="container" ng-controller="ServicesCtrl">
<h1>Service Client Maker</h1>
{{message}}
</div>
</body>
</html>
it is not displaying my message. controller.js file is not accessable
Its clear that you are trying to define a controller like a simple js function.
But, It works in a different way.
You have to initialize an angular app within an java-script variable like this,
var app=angular.module("MyApp");
and handle that entire angular application, through that js variable "app".
I strongly recommend you to completely go through below tutorials.. Then, Start creating the App..
https://www.tutorialspoint.com/angularjs/angularjs_mvc_architecture.htm
http://www.w3schools.com/angular/default.asp
You have to define your angular application and its modules.
var app = angular.module('myApp');
app.controller('serviceController', function() {
$scope.message = "Nice, I now know how to create an angular app";
})
And you will now be able to access it on your page:
<body ng-app="myApp">...
<div ng-controller="serviceController">...
{{message}}
This should help you since you're getting started with angular.
Here this example
define your controller name (controller.js)
var app = angular.module('myApp', []);
app.controller('ServicesCtrl', function($scope) {
$scope.message = "Hello";
});
define your app name (index.html)
<body ng-app="myApp">
<div class="container" ng-controller="ServicesCtrl">
<h1>Service Client Maker</h1>
{{message}}
</div>
</body>
I am trying to build a simple web app that communicates with an external API , for the first step i wish to check if my controller,service-html integration is all in placed , so I'm tying to bind a simple variable from the controller to the view, but i am getting {{msg}} instead of a successful bind.
please ignore the service for now its just my fundumentals for later on.
main.html :
<!DOCTYPE html>
<html >
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="controller.js"></script>
<head></head>
<body ng-app="queueApi" ng-controller="MainController">
<div>
<h1>{{msg}}</h1>
</div>
</body>
</html>
queueservice.js
angular.module('queueApi')
.factory('queueService', function ($resource){
return $resource('http://127.0.0.1:8080/queue/:id',{id: '#id'});
});
controller.js
var app = angular.module('queueApi' , ['ngResource']);
app.controller('MainController', function($scope,$http, queueService){
$scope.msg = "Hi tom";
// $scope.items = queueService.query({id:2}); //getting all from id 2
});
If you look at your console you can see the error in module creation. It is because the ngResource module is in external source file rather than angular.min.js. Add also the angular-resource.js.
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-resource.min.js"></script>
<script src="controller.js"></script>
In addition to Hamlet Hakobyan's answer, you must ensure that your modules have been included in correct order. With your code structure controller.js should precede queueservice.js.
From the documentation:
Beware that using angular.module('myModule', []) will create the module myModule and overwrite any existing module named myModule. Use angular.module('myModule') to retrieve an existing module.
I am trying to learn about angular Directives and following the example given in here (http://docs.angularjs.org/guide/directive), have written the below code. Could anyone please guide me as what am i doing wrong that the data from the scope of the controller is not being read in the directive? The site says nothing about it! And there is no error upon executing the code, it just does not display any data. Please help.
//My Html
<!DOCTYPE html>
<html data-ng-app="MyApp">
<head>
<title>Angular Directives</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body >
<div data-ng-controller = "MyCtrl"></div>
<div data-template-expanding-directive></div>
<script src="lib/angular.js"></script>
<script src="js/templateExpandingDirective.js"></script>
</body>
</html>
//My JS
'use strict';
var myapp = angular.module('MyApp',[]);
myapp.controller('MyCtrl',['$scope',function($scope){
$scope.customer = {
name: "Jenny",
place: "England"
};
}])
.directive('templateExpandingDirective',function(){
return {
template: 'Name: {{customer.name}}'
};
});
Regards
The directive is currently out of controller scope. So you need to have directive inside the controller scope. The html should be like this -
<div data-ng-controller = "MyCtrl">
<div data-template-expanding-directive></div>
</div>
If you do not move the directive element inside the controller div element then you can either have one more parent 'div' element or access the data from global root scope.