Create angular module after timeout is not working - javascript

I am trying to delay the module creation, but it doesn't work (I am using Chrome). Here is my code TRY THE JSFIDDLE
<!doctype html>
<html>
<head>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.5/angular.min.js"> </script>
</head>
<body>
<div ng-controller="MyCtrl">
Hello, {{name}}!
</div>
<script>
//initApp();
setTimeout(initApp, 1000);
function initApp() {
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl',
function($scope) {
$scope.name = 'Superhero';
});
}
</script>
</body>
</html>
If I remove the setTimeout and simply call initApp(), then it works. Can anyone explain why?
I am trying to embed an angular app into a page, and I am not allowed to add script tags to the HEAD. So I have to figure out some way to postpone the angular module initialization until after the angular.min.js is loaded and parsed.

It's not how you do it in angular way.
First i don't see any ng-app tag so your controler won't ever be called.
Second in order to delay the bootstrapping (and not using ng-app tag) you use angular.boostrap :
//initApp();
setTimeout(initApp, 1000);
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl',
function($scope) {
$scope.name = 'Superhero';
});
function initApp() {
angular.bootstrap('myApp');
}
For dynamic loading of javascript file see : lazy loading javascript the second point of the author of the post should do the job.

There is no need to use setTimeout. Browsers parse the JavaScript in the order they are declared in the HTML unless the async attribute is used.

Related

AngularJS' ng:areq Bad Argument "{controller} is not a function", with textAngular on CodeIgniter

I'm trying to implement a text editor with textAngular in a CodeIgniter view, but it keep returning this error:
angular.js:13424 Error: [ng:areq] Argument 'wysiwygeditor' is not a function, got undefined
http://errors.angularjs.org/1.5.3/ng/areq?p0=wysiwygeditor&p1=not%20a%20function%2C%20got%20undefined
Where 'wysiwygeditor' is the name on ng-controller.
I've found tens of questions about that, and all seems to be caused by the same mistakes:
Unnamed ng-app directive
Omitted second argument on module definition
angular.module('myApp', [])
Version incompatibilities on controller declaration
None of those happens to be the problem, and I'm simply copying a code that already works. It's the demo.html from textAngular-1.5.0. I copy the code to a CodeIgniter view, include all the required libraries, but still get the error. Then I noticed it's happening whenever I declare a controller with Angular JS.
To make a better example:
<script src='https://ajax.googleapis.com/ajax/libs/angularjs/1.3.11/angular.min.js'></script>
<div ng-app="myApp">
<div ng-controller="GreetingController">
{{greeting}}
</div>
</div>
<script>
var myApp = angular.module('myApp',[]);
myApp.controller('GreetingController', ['$scope', function($scope) {
$scope.greeting = 'Bom dia!';
}]);
</script>
This code gives that error on CodeIgniter, but if I put it in a simple html file, works normally.
Here is your edited working code...
Dont use editor, Its waste of your time, They are mostly not working , some time its working...
<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.11/angular.min.js"></script>
<body>
<div ng-app="myApp" >
<div ng-controller="GreetingController">
{{greeting}}
</div>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('GreetingController', function($scope) {
$scope.greeting= "John";
});
</script>
</body>
</html>
My fault, my project was declaring an ng-app on a parent element, in a template file that I've forgot that existed. Removed this tag, and AngularJS stop returning that error.

How to write HTML inside elements with Angular

I'm beginning with Angular, and just wanted to make some tests with Ajax, retrieving a document into my page. It works perfectly, but then a new challenge appeared: I want to be able to add HTML inside a DOM element.
Normally, one would do that from a directive and the templates thingy. But I want to do it at runtime, using a controller.
This is my code:
$http.get("import.html").then(function(response){
var element = document.createElement("div");
element.innerHTML = response.data;
angular.element("#div1").innerHTML(element);
});
Maybe I'm not using correctly "angular.element"? I tried using document.getElementByID, but it doesn't work either. I receive correctly the information from the file, but I just don't find a way I can compile that HTML in runtime.
Any help with this?
edit for showing my full code:
HTML:
<!DOCTYPE html>
<html ng-app="miApp">
<head>
<meta charset="UTF-8">
<script src="angular.js"></script>
<script src="mainmodule.js"></script>
<link rel="stylesheet" href="bootstrap/css/bootstrap.css">
</head>
<body ng-controller="controlador1">
<div id="div1" ng-bind-html="myHtml" style="top:50px;left:50px">
</div>
</body>
</html>
JS:
(tested all your examples, none worked for me, this is the last I used)
app.controller('controlador1', ["$scope", "$http", "$sce", "$compile", function($scope, $http, $sce, $compile) {
$http.get("import.html").then(function(response) {
var parent = angular.element("#div1");
var element = angular.element($sce.trustAsHtml(response.data);
$compile(element)($scope);
parent.append(element);
});
}]);
Usually, you want to compile your HTML if it contains any angular functionality at all (you need to declare '$compile' in your controller dependency list):
myApp.controller('myController', ['$scope', '$sce', '$compile'],
$scope, $sce, $compile) {
$http.get("test.html")
.then(function(response){
var parent = angular.element("#div1");
parent.append($compile(response.data) ($scope));
});
}]);
if you are hell-bent on useing innerHTML, note that angular.element("#div1") is the same as $("#div1") in jQuery. So you need to write angular.element("#div1")[0].innerHTML= ...
Here's a plnkr: http://plnkr.co/edit/p3TXhBppxXLAMwRzJSWF?p=preview
In this, I have made use of $sce. It's a dependency injection of AngularJS, where it treats the HTML as safe to bind. You can read about it in AngularJS site. Please find below code and working jsfiddle for the raised concern:
HTML:
<div ng-app="app" ng-controller="test">
<div>
This is onload HTML
</div>
<div ng-bind-html="dynamicHtml"></div>
</div>
JS
var app = angular.module('app', []);
app.controller('test', function ($scope, $sce) {
$scope.dynamicHtml = $sce.trustAsHtml("<div>This is dynamic HTML!!");
});
[Update]
HTML:
<div ng-bind-html="dynamicHtml"></div>`
JS:
$http.get("import.html").then(function (response) {
$scope.dynamicHtml = $sce.trustAsHtml(response.data); //Assuming 'response.data' has the HTML string
});
You are not using correctly angular. If you use angular, you don't harly ever have to use DOM selector.
Scope is binded with ng-model and {{}} on the view.
Now your answer. To print html on the view, you can do it in that way:
In controller:
$http.get("import.html").then(function(response){
$scope.html = $sce.trustAsHtml(response.data);
});
In view:
<div ng-bind-html="html"></div>
And more easy way:
<ng-include="'url/import.html'"><ng-include>
That's it!!!

How to use <md-progress-linear> in AngularJS MD?

I am using Material Design in my AngularJS app and I want to add a progress bar while my page is loading.
MD uses md-progress-* Directive to get a loading bar:
<md-progress-linear md-mode="determinate" value="..."></md-progress-linear>
In my app I tried to get loading progress complete on $viewContentLoaded:
HTML:
<html ng-app="app">
<body ng-controller="AppCtrl">
<md-progress-circular ng-if="determinateValue === 100" md-mode="determinate" value="{{determinateValue}}"></md-progress-circular>
...
</body>
</html>
JS:
'use strict';
angular.module('app', ['ngMaterial', 'ngAnimate'])
.controller('AppCtrl', function ($scope) {
$scope.determinateValue = 0;
$scope.$on('$viewContentLoaded', function(){
$scope.determinateValue = 100;
});
});
But it doesn't work and I do not get any error.
ps. the <md-progress-linear> tag is disappeared from the DOM.
Firstly, use md-mode="indeterminate" as your loading is binary and has only two states. get rid of the ng-if and use the value attribute bound to $scope.determinateValue. So:
<md-progress-circular md-mode="indeterminate" value="determinateValue"></md-progress-circular>
I'd rename the determinateValue to something more precise and reflective also. Also the tag disappears cause the determinateValue is always at some point being assigned to 100 ie your content is loading

Angular error Error: [ng:areq]

I'm new on Angular, I'd like to know what's wrong with my code, because the browser shows me this error: Error: [ng:areq] http://errors.angularjs.org/1.4.7/ng/areq?p0=HelloWorldCtrl&p1=not%20a%20function%2C%20got%20undefined
at Error (native)
y el codigo es este:
<!doctype html>
<html ng-app>
<head>
<title>Angular Practice</title>
</head>
<body>
<h1 ng-controller="HelloWorldCtrl">{{helloMessage}}</h1>
<script src="angular.min.js"></script>
<script type="text/javascript">
function HelloWorldCtrl($scope) {
$scope.helloMessage = "Angular Practice";
}
</script>
</body>
</html>
Thanks a lot.
Your HelloWorldCtrl isn't defined.
This is because you're not binding it as an angular module with a controller attached.
ng-controller looks for a definition like this:
angular.module('HelloWorldCtrl', [])
.controller('HelloWorldCtrl', function($scope){
$scope.helloMessage = "Angular Practice";
});
That controller also needs to be assigned to the main app, which you need to reference on that ng-app directive, i.e.
<html ng-app="helloWorldApp">
Which should point to a module you create as such:
var helloWorldApp = angular.module('helloWorldApp ', [
'HelloWorldCtrl'
])
Notice, I'm including a 'HelloWorldCtrl' reference as an item for the second parameter on that module definition. This tells angular to load that controller as a resource which you can then reference through that ng-controller directive.
EDIT:
Did a little research on my mention of adding 'HelloWorldCtrl' as an item in the array above and wanted to elaborate a little bit on why my solution is slightly different than the other answer here. The way I've set it up, is such that 'HelloWorldCtrl' is a separate module. In this case you do need to reference it in the way I have. This tells the app module that it depends on the 'HelloWorldCtrl' module. In the answer below mine is binding that controller directly to the app, in which case this isn't necessary.
Steps to make it working,
Add a ng-app directive to your <html> tag
Define your module app in the script below.
Define your controller HelloWorldCtrl as below.
Check this Plunker - http://plnkr.co/edit/w8RWm6nr1WgvhX3BbGUE?p=preview
!DOCTYPE html>
<html ng-app="app">
<head>
<script src="http://apps.bdimg.com/libs/angular.js/1.4.0-beta.4/angular.min.js"></script>
</head>
<h1 ng-controller="HelloWorldCtrl">{{helloMessage}}</h1>
<script type="text/javascript">
angular.module('app', []);
angular.module('app').controller('HelloWorldCtrl', [ '$scope', function($scope) {
$scope.helloMessage = "Angular Practice";
}]);
</script>
</html>

AngularJS not working - can't pick up variables

I'm new to web designing and angular, and am copying something similar to this, where I consume a RESTful web service and use AngularJS to display the info in the JSON.
It doesn't seem to be working for me. My main.jsp file looks like:
<!doctype html>
<html ng-app>
<head>
<title>Your Bill</title>
<!-- Include the AngularJS library -->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.5/angular.min.js"></script>
<!-- BillParser script -->
<script type="text/javascript" src="js/app.js"></script>
</head>
<body>
<div ng-controller="GetBill">
<p>The ID is {{bill.id}}</p>
<p>The content is {{bill.content}}</p>
</div>
</body>
</html>
And my app.js looks like:
function GetBill($scope, $http) {
$http.get('http://rest-service.guides.spring.io/greeting').
success(function(data) {
$scope.bill = data;
console.log('INITTED');
});
}
But it looks like the following on localhost/billparser/index:
The ID is {{bill.id}}
The content is {{bill.content}}
Is there something obvious I'm missing here? Excuse the 'bill' naming, it's going to eventually be something relating to bills, I just want to get Angular working first!
It looks like I'm getting the following error:
https://docs.angularjs.org/error/ng/areq?p0=GetBill&p1=not%20a%20function,%20got%20undefined
What do I need to do to fix this? I've never used js before so this is all new to me!
Thanks for your time.
It seems to me that you've missed something here: actually creating a Controller and registering it in your AngularJS application.
From The AngularJS documentation on Controllers (link here), that is what your app.js file should look like:
var myApp = angular.module('myApp',[]);
myApp.controller('GreetingController', ['$scope', function($scope) {
$scope.greeting = 'Hola!';
}]);
That is the featured example. In your case, more precisely, it would be:
var myApp = angular.module('myApp',[]);
myApp.controller('GetBill', ['$scope', '$http', function($scope, $http) {
$http.get('http://rest-service.guides.spring.io/greeting').success(function(data) {
$scope.bill = data;
// console.log('INITTED');
});
}]);
... and that should do it!
I sure hope that you had this inside the controller as:
app.controller('GetBill', ['$scope', '$http', function($scope , $http) {
$http.get('http://rest-service.guides.spring.io/greeting').
success(function(data) {
$scope.bill = data;
console.log($scope.bill);
});
}]);
Check the console for correct data. console.log($scope.bill);
After creating the controller as suggested by the other guys here, depending on your data, you will probably need an ng-repeat in your view.
If, for example, the data returned by getBill is an array of objects; after assigning the data to $scope.bill (which you did already) you would have to go into the view and change it to this:
<div ng-controller="GetBill">
<div ng-repeat="b in bill">
<p>The ID is {{b.id}}</p>
<p>The content is {{b.content}}</p>
</div>
</div>
But if you are not getting an array, you don't have to worry about it.

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