Introduction:
AngularJS is a very popular Framework which is written in JavaScript. AngularJS is normally available as a JavaScript file, whichcan be added to any of your web page with the following script tag:
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
AngularJS extends the functionality of HTML with the following ng-directives.
1. ng-app directive:
The ng-app directive defines an AngularJS application.
2. ng-model directive:
The ng-model directive binds the value of HTML controls (input, select, textarea) to application data.
3. ng-bind directive:
The ng-bind directive binds application data to the HTML view.
4. ng-init directive:
The ng-init directive initializes AngularJS application variables.
5. AngularJS Expressions:
In AngularJS expressions are written inside double Curly Brackets (Braces)
The following example script illustrates the uses of above mentioned directives and Expressions:
<!DOCTYPE html> //This indicates the start of an HTML file
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body>
<div ng-app=""> //Here the ng-app directive is used to indicate that this div will have AngularJS Application code
<p>My first expression: {{ 88 + 5 }}</p> //Here in this paragraph, the 88+5 expression is inserted with double curly brackets.
</div>
</body>
</html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body>
<div ng-app=""> //Here the ng-app directive is used to indicate that this div will have AngularJS Application code
<p>My first expression: {{ 88 + 5 }}</p> //Here in this paragraph, the 88+5 expression is inserted with double curly brackets.
</div>
</body>
</html>
