Introduction to AngularJs

Angular is a well-known open-source web application framework that Google introduced in 2009. Initially known as Angular Js, it has many problems such as performance issues.

Bundle size, dependency stops working after injection code confirmation, complex debugging issues and other technical issues. But since its first version, Google’s engineering team has made many changes to their structure, adding many new libraries and features, including AOT, and tree-shaking, to make Angular JS better.

Benefits:

  • AngularJs allows us to create a single page application in the very best way.
  • AngularJs provides HTML data binding capability so that the user can get rich and responsive UI.
  • Coding with AngularJs is unit-testable.
  • In AngularJs we can work to isolate worries. I am using dependency injection.
  • The best part about AngularJs is that it provides reusable components
  • In AngularJs we can achieve more with less effort or less code.
  • The main advantage of AngularJs is that it is compatible with all major browsers, including Chrome, IE, and Firefox, and also supports smartphones and tablets based on Android and iOS.

Disadvantage :

Initially, AngularJs had many advantages as well as disadvantages. But, after interfering with the team of Google developers, they tried to reduce the defects to some extent. There is still a point of concern with angular js here.

Security:

As we know AngularJs is a JavaScript-based framework and applications that are written with angularJs are not secure. The server-side authentication and authentication application are protected.

Not trustworthy:

If we can disable JavaScript, then we can see nothing but the default page.

The main features

  1. Data-Binding: Provides automatic synchronization of data between the data-binding model and the view component.
  2. Space: Space is the object and it refers to the model and acts as a glue between the controller and the view.
  3. Controller: In the controller, we can set the JavaScript function to a specific scope.
  4. Services: AngularJs has many in-build services like $ HTTP to handle XMLHttp requests. It is a singleton object and is only instantiated once in the app.
  5. Filters: Filters provide the ability to select a subset of items from an array and return a new array.
  6. Dependency Injection: Releases AngularJes with an inbuilt dependency injection system that helps the developer to easily understand and test the application.
  7. Routing: Routing is the concept of changing views. This helps our app become a one-page application. For that, we have to include Angularjs routing in our module.
  8. Templates: In Angular, all templates are written in HTML with angular-specific features and elements. The view is rendered with the information of the model and controller. It can make a single file or multiple views on a page using “partial”
  9. Hints: Hints are a comprehensive tip pen on DOM elements such as attributes, elements, CSS and more that will be used to create custom HTML tags that serve as new custom widgets. AngularJS has built-in instructions like blind and ngModel etc.
  10. Deep linking: Deep linking allows us to encode the status of an application in a URL so that it can be bookmarked. The application can be restored to the same state from the URL.

General features

  • We can build a rich internet application using Angular JS.
  • Angular js allows us to write client-side code using JavaScript as MVC.
  • AngularJs provides cross-browser compatibility and handles the appropriate JavaScript code for each browser automatically.
  • AngularJs is a completely free and open-source used by thousands of developers around the world.
  • Angularjs is used to build high-performance, large-scale and easy-to-maintain web applications.
  • AngulaJs Directives: AngularJs is a JavaScript-based framework and can be divided into three main parts.

ng-app: Using this directive we can link the AngularJs application to HTML.ng-model: Using this directive we can bind the value of AngularJS application data to HTML input controls. ng-bind. Using these pointers we can bind AngularJs application data for HTML tags.

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