AngularJS angular.bootstrap() Function

Last Updated : 06 Sep, 2022

The angular.bootstrap() Function in AngularJS is a functional component in the Core ng module which is used to start up an Angular application manually, it provides more control over the initialization of the application.

Syntax:

angular.bootstrap(element, [modules], [config]);

Parameter Values:

element: An element is a DOM element (e.g. document) that is the root of the Angular application.
Modules: (Optional)Modules are an array of modules to be loaded.
Config: (Optional)Config is an object used for configuration options.

Example 1: This example describes the usage of the angular.bootstrap() Function in AngularJS.

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>angular.bootstrap() Function</title> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"> 
    </script> 
    <style> 
        .id { 
            font-size: 1.5em; 
            color: green; 
        } 
    </style> 
</head> 
  
<body ng-app="app" style="text-align:Center"> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <h2>angular.bootstrap()</h2> 
    <div ng-controller="geek"> 
        <span class="id">{{name}}</span> 
        is the computer science portal for geeks. 
    </div> 
    <script> 
        var app = angular.module("app", []); 
        app.controller('geek', ['$scope',  
        function ($scope) { 
            $scope.name = "GeeksforGeeks"; 
        }]); 
        angular.bootstrap(document, ['app']); 
    </script> 
</body> 
  
</html>

Output:

bootstrap

Example 2: This example describes the usage of the angular.bootstrap() Function in AngularJS by specifying the radio button.

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>angular.bootstrap() Function</title> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"> 
    </script> 
</head> 
  
<body ng-app="app" style="text-align:Center"> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <h2>angular.bootstrap()</h2> 
      
    <div ng-controller="geek"> 
        <div class="col-md-3 well" 
            ng-init="count=0"> Male: 
            <input type="radio" ng-model="gender" 
            value="Male" 
            ng-change="layout(gender)" /> Female: 
            <input type="radio" ng-model="gender" 
            value="Female" ng-change="layout(gender)" /> 
            <pre> 
                <b>You selected:</b> {{result}}  
            </pre> 
        </div> 
    </div> 
  
    <script> 
        var app = angular.module("app", []); 
        app.controller('geek', ['$scope',  
        function ($scope) { 
            $scope.layout = function (gender) { 
                $scope.result = gender; 
            } 
        }]); 
        angular.bootstrap(document, ['app']); 
    </script> 
</body> 
  
</html>