The ng-app Directive in AngularJS is used to define the root element of an AngularJS application. This directive automatically initializes the AngularJS application on page load. It can be used to load various modules in AngularJS applications. The ng-app directive declares only once in the HTML document. In case if it is declared more than once then the first ng-app directive appears will be used.
Syntax:
Contents...
Parameter value:
- dataModule: It specifies the name of the module that is to be loaded in the application. It is an optional parameter.
Example 1: This example implements the ng-app Directive to define a default AngularJS application.
<html>
<head>
<title>AngularJS ng-app Directivetitle>
<script src=
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js">
script>
head>
<body style="text-align:center">
<h1 style="color: green">GeeksforGeeksh1>
<h3>ng-app directiveh3>
<div ng-app="" ng-init="name='GeeksforGeeks'">
<p>{{ name }} is the portal for geeks.p>
div>
body>
html>
Output:
Example 2: This example implements the ng-app Directive to define a default AngularJS application.Â
<html>
<head>
<title>
AngularJS ng-app Directive
title>
<script src=
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js">
script>
head>
<body ng-app="" style="text-align: center">
<h1 style="color:green">
GeeksforGeeks
h1>
<h2>ng-app Directiveh2>
<div>
<p>Name:
<input type="text" ng-model="name">
p>
<p>You entered:
<span ng-bind="name">span>
p>
div>
body>
html>
Output:
