Use rootScope variables in my html

Angularjs

Angularjs Problem Overview


So we can use scope variables in our angular html easily like this:

<!doctype html>
<html ng-app>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.min.js"></script>
  </head>
  <body>
    <div>
      <label>Name:</label>
      <input type="text" ng-model="yourName" placeholder="Enter a name here">
      <hr>
      <h1>Hello {{yourName}}!</h1>
    </div>
  </body>
</html>

So for example:

<h1>Hello {{yourName}}!</h1>

Is using yourName from the scope I was hoping to do:

<h1>Hello {{yourName}} you are in in {{$rootScope.zoneName}}!</h1>

Is it possible to bring $rootScope variables in like this?

Angularjs Solutions


Solution 1 - Angularjs

You do not need to specify $rootScope in html. You can use it the same way as you use $scope variables

Just update from

<h1>Hello {{yourName}} you are in in {{$rootScope.zoneName}}!</h1>

to

<h1>Hello {{yourName}} you are in in {{zoneName}}!</h1>

Solution 2 - Angularjs

This should work:

<h1>Hello {{yourName}} you are in in {{$root.zoneName}}!</h1>

Solution 3 - Angularjs

you could inject $rootScope in you controller and then map it to a scope variable like this

$scope.global = $rootScope;

then in your template you could use

<p>$rootscope value of name is {{ global.name }}.</p>

You have to be careful to not uselessly put thing into the $rootScope as it's not considered the best practice to modulate your code

Solution 4 - Angularjs

I know this is late, But a good explanation is needed !

Any View in Angular 1.x world will have automatically and by default a new $scopesuch $scope will be extended from something called the $rootScope so the local $scope will inherit everything that the $rootScope is storing and will have it's own version of the that data.

So if you have any information in the $rootScope level you will have it by default and so your view can access it directly using usual interpolation.

This line of code will show the how too !

var app = angular.module('plunker', []);

app.run(function($rootScope) {
  $rootScope.persons = [
     {
       name : "Houssem",
       role : "Developer Advocate"
     },
     {
       name: "Clark",
       role: "Developer"
     }
  ];
})

app.controller('MainCtrl', function($scope) {
  $scope.greetings = 'Hello World !';
});

And this on the Index page :

<!DOCTYPE html>
<html ng-app="plunker">

<head>
 <meta charset="utf-8" />
 <title>AngularJS Plunker</title>
 <link rel="stylesheet" href="style.css" />
 <script data-require="[email protected]" src="https://code.angularjs.org/1.0.8/angular.js" data-semver="1.0.8"></script>
 <script data-require="[email protected]" data-semver="1.0.0-alpha.5" src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/1.0.0-alpha.5/angular-ui-router.js"></script>
 <script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
     <p>{{greetings}}</p>
     <ul>
       <li ng-repeat="person in persons">
         <p>{{person.name}} - {{person.role}}</p>
       </li>
     </ul>
 </body>
</html>

And please check This Plunker which explain just that !

Solution 5 - Angularjs

In my case it was not working with using rootscope variables directly. I had to use it with $root.

my code looks like below:

<h1>you are in in {{$root.zoneName}}!</h1>

Attributions

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionyatgView Question on Stackoverflow
Solution 1 - AngularjsNikhil AggarwalView Answer on Stackoverflow
Solution 2 - AngularjsGPicazoView Answer on Stackoverflow
Solution 3 - AngularjszeachcoView Answer on Stackoverflow
Solution 4 - AngularjsHoussem YahiaouiView Answer on Stackoverflow
Solution 5 - AngularjsYuvraj PatilView Answer on Stackoverflow