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AngularJS and its programming concepts in simple and easy steps. It describes We strive to update the contents of our website and tutorials as timely and as. AngularJS Tutorial in PDF - Learn AngularJS in simple and easy steps starting from Overview, Environment Setup, MVC Architecture, First Application, Directives. A great way to get introduced to AngularJS is to work through this tutorial, which walks you through the construction of an AngularJS web app. The app you will.
Its data binding and dependency injection eliminate much of the code you currently have to write. And it all happens within the browser, making it an ideal partner with any server technology. It was originally developed in by Misko Hevery and Adam Abrons. It is now maintained by Google.
It is the automatic synchronization of data between model and view components. These are objects that refer to the model.
These select a subset of items from an array and returns a new array. 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.
These are the rendered view with information from the controller and model. These can be a single file such as index. It is concept of switching views. MVW is a design pattern for dividing an application into different parts called Model, View, and Controller, each with distinct responsibilities. Deep linking allows you to encode the state of application in the URL so that it can be bookmarked.
The application can then be restored from the URL to the same state. AngularJS has a built-in dependency injection subsystem that helps the developer to create,understand, and test the applications easily.
Concepts The following diagram depicts some important parts of AngularJS which we will discuss in detail in the subsequent chapters. Thus, it gives user a rich and responsive experience. Server side authentication and authorization is must to keep an application secure.
When you open the link https: Legacy and Latest. The names themselves are self descriptive. The Legacy has version less than 1.
You also have access to a CDN. The CDN gives you access around the world to regional data centres. In this case, the Google host.
This means, using CDN transfers the responsibility of hosting files from your own servers to a series of external ones. This also offers an advantage that if the visitor of your web page has already downloaded a copy of AngularJS from the same CDN, there is no need to re-download it. We are using the CDN versions of the library throughout this tutorial.
Example Now let us write a simple example using AngularJS library. Let us create an HTML filemyfirstexample.
You can either add it to html element or body element as shown below: Controller The controller part is: We will study more about modules and controllers in their respective chapters. The controller function is registered in angular via the angular.
Let us see: The page is now ready. A Model View Controller pattern is made up of the following three parts: MVC is popular as it isolates the application logic from the user interface layer and supports separation of concerns. The controller receives all requests for the application and then works with the model to prepare any data needed by the view.
The view then uses the data prepared by the controller to generate a final presentable response. The MVC abstraction can be graphically represented as follows.
It responds to the request from view and to the instructions from controller to update itself. The view A presentation of data in a particular format, triggered by the controller's decision to present the data. The controller The controller responds to user input and performs interactions on the data model objects. The controller receives input, validates it, and then performs business operations that modify the state of the data model.
An AngularJS application consists of following three important parts: Enter your name and see the result. They are special attributes starting with ng-prefix. Let us discuss the following directives: It defines the root element. It automatically initializes or bootstraps the application when the web page containing AngularJS Application is loaded. It is used to assign values to the variables.
As a next step, we define it as follows: We pass the default values to them. Now we can use studentController's student property using ng-model or using expressions as follows: Enter first name: Example The following example shows the use of controller: They can be clubbed in expression or directives using pipe character.
The following list shows commonly used filters. Name Description 1 uppercase converts a text to upper case text.
Uppercase Filter This adds uppercase filter to an expression using pipe character. Here, we add uppercase filter to print student name in capital letters. Here, we add lowercase filter to print student name in small letters. Here, we add currency filter to print fees using currency format. Enter subject: See the result. The ng-repeat directive can be used to draw table easily.
The following example shows the use of ng-repeat directive to draw a table: Name Description 1 ng-disabled Disables a given control. Bind the model to a checkbox and see the variation. Bind the model to HTML and see the variation. Modules are used to separate logic such as services, controllers, application etc. Dom manipulation angularjs directive. Angularjs html dom example. Angularjs scope tutorial: Angularjs scope example.
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