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2. • Data-binding − It is the automatic synchronization of data between
model and view components.
• Scope − These are objects that refer to the model. They act as a glue
between controller and view.
• Controller − These are JavaScript functions bound to a particular
scope.
• Services − AngularJS comes with several built-in services such as
$http to make a XMLHttpRequests. These are singleton objects which
are instantiated only once in app.
• Filters − These select a subset of items from an array and returns a
new array.

3. • Directives − Directives are markers on DOM elements such as
elements, attributes, css, and more. These can be used to create
custom HTML tags that serve as new, custom widgets. AngularJS has
built-in directives such as ngBind, ngModel, etc.
• Routing − It is concept of switching views.
• Model View Whatever − MVW is a design pattern for dividing an
application into different parts called Model, View, and Controller,
each with distinct responsibilities.
• Dependency Injection − AngularJS has a built-in dependency
injection subsystem that helps the developer to create, understand,
and test the applications easily.

4. • It provides the capability to create Single Page Application in a
very clean and maintainable way.
• It provides data binding capability to HTML. Thus, it gives user
a rich and responsive experience.
• AngularJS uses dependency injection and make use of
separation of concerns.
• With AngularJS, the developers can achieve more functionality
with short code.
• In AngularJS, views are pure html pages, and controllers written
in JavaScript do the business processing.

6. • AngularJS is distributed as a JavaScript file, and
can be added to a web page with a script tag:
• <script src="https://ajax.googleapis.com/ajax/libs/
angularjs/1.6.9/angular.min.js"></script>

8. • AngularJS directives can be applied to DOM elements in
many ways. It is not mandatory to use ng- syntax only.
• Directive can also start with x- or data-, for example ng-
model directive can be written as data-ng-model or x-ng-
model.
• Also, the - in the directive can be replaced with : or _ or
both. For example, ng-model can be written as ng_model
or ng:model. It can also be a mix with data- or x-.

9. Directive Description
ng-app Auto bootstrap AngularJS application.
ng-init Initializes AngularJS variables
ng-model Binds HTML control's value to a property on the $scope object.
ng-
controller
Attaches the controller of MVC to the view.
ng-bind Replaces the value of HTML control with the value of specified
AngularJS expression.
ng-repeat Repeats HTML template once per each item in the specified
collection.

10. Directive Description
ng-show Display HTML element based on the value of the specified
expression.
ng-
readonly
Makes HTML element read-only based on the value of the
specified expression.
ng-
disabled
Sets the disable attribute on the HTML element if specified
expression evaluates to true.
ng-if Removes or recreates HTML element based on an expression.
ng-click Specifies custom behavior when an element is clicked.

11. Here “ng-app” Directive starts the angular js
This link is the source of angular js( You can alos
download it and access it locally)
Directive to Hold input data
Directive binds
application data to
the HTML view.

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