Overview Of Angular Framework

  • By Kuldeep Singh
  • February 5, 2025
  • Angular
Overview Of Angular Framework

Overview Of Angular Framework

Get an Overview of Angular Framework, a powerful TypeScript-based platform for building dynamic, scalable, and modern web applications with ease and efficiency.


What is Angular Framework?

Angular is a TypeScript-based open-source front-end platform that makes it easy to build web,

mobile, and desktop applications. The major features of this framework include declarative

templates, dependency injection, and end-to-end tooling which ease application development.

 

Angular is a powerful open-source framework developed and maintained by Google. It is primarily used to build dynamic, single-page web applications (SPAs). Built using TypeScript, Angular offers a comprehensive suite of tools and libraries for developing robust web applications, ensuring scalability, maintainability, and testability.

One key feature of Angular is its component-based architecture, where the user interface (UI) is divided into reusable and self-contained components. For example, in an e-commerce app, you could have components like ProductList, ProductDetail, and ShoppingCart, each managing its own logic and view. These components are then organized into modules to manage functionality.

Angular also provides two-way data binding, meaning changes in the model (data) automatically reflect in the view (UI) and vice versa. For instance, when a user types in a search bar, the model data updates in real-time, and the view automatically reflects the changes. Angular’s reactive forms and validation allow for dynamic form handling, essential for applications with complex forms like user registration or checkout.

Additionally, Angular supports dependency injection, which enhances testability and modularity by promoting loose coupling between components. This makes it easier to maintain and scale large applications.

Overall, Angular is ideal for building large, complex, and enterprise-level applications due to its rich feature set.

 

What is the difference between AngularJS and Angular?

Angular is a completely revived component-based framework in which an application is a tree of individual components.

AngularJS and Angular are fundamentally different frameworks in terms of architecture, performance, and features. Angular is a complete overhaul of AngularJS, offering modern, scalable tools for building complex web applications. The introduction of TypeScript, improved performance, and better tooling support make Angular a far superior choice for modern web development.

AngularJS and Angular are both web application frameworks developed by Google, but they are distinct in terms of architecture, performance, and the overall approach to building applications. While AngularJS refers to the original version (Angular 1.x), Angular (starting from version 2 and beyond) represents a complete rewrite of AngularJS. Below are the key differences between the two:

 

1. Architecture:

AngularJS: AngularJS follows an MVC (Model-View-Controller) architecture, where the model represents the data, the view represents the UI, and the controller manages the logic. The view is automatically updated when the model changes, thanks to data binding.

Angular: Angular, on the other hand, follows a component-based architecture. In Angular, the application is divided into reusable components, which encapsulate both the logic and the UI. These components make it easier to manage the code, improve reusability, and scale applications more efficiently.

 

2. Language:

AngularJS: AngularJS uses JavaScript as the primary language. JavaScript’s flexibility is a benefit, but it also leads to some inconsistencies in large applications.

Angular: Angular uses TypeScript, which is a superset of JavaScript. TypeScript offers static typing, better tooling support, and compile-time checks, leading to more robust and maintainable code. For example, Angular’s support for classes, interfaces, and decorators in TypeScript leads to better organization and easier refactoring.

 

3. Performance:

AngularJS: AngularJS uses a two-way data binding mechanism, which can result in performance bottlenecks, especially in large applications with complex views. This can happen due to the “digest cycle” that checks for changes in the model and updates the view, leading to slower performance.

 

Angular: Angular uses change detection strategies and the RxJS library for handling asynchronous data streams more efficiently. This results in better performance, as Angular checks for updates more intelligently. The Ahead-of-Time (AOT) compilation improves loading times by compiling templates and components at build time instead of runtime.

4. Directives:

AngularJS: AngularJS uses directives to add behavior to HTML elements (e.g., ng-repeat, ng-model). However, directives in AngularJS can be confusing due to the different ways they are used (attributes, elements, and classes).

Angular: Angular has a simpler, more streamlined approach to directives and components. In Angular, everything is a component, and directives are mostly used to manipulate the DOM. The use of components helps to clearly define the structure and behavior of the app.

 

5. Routing:

AngularJS: AngularJS has a built-in ngRoute module for routing, but it’s limited in functionality and flexibility.

Angular: Angular has a more robust and powerful Angular Router, which supports features like lazy loading, child routes, and more complex navigation scenarios.

 

6. Tooling:

AngularJS: Tooling support for AngularJS was limited compared to modern frameworks, and developers often had to rely on third-party tools for tasks like testing and bundling.

Angular: Angular comes with extensive tooling support, including the Angular CLI (Command Line Interface), which simplifies tasks like generating components, services, and routing, as well as bundling and testing the application.

 

AngularJS Example:

var app = angular.module(‘myApp’, []);

app.controller(‘MainCtrl’, function($scope) {

  $scope.message = “Hello, AngularJS!”;

});

 

Angular Example:

import { Component } from ‘@angular/core’;

@Component({

  selector: ‘app-root’,

  template: ‘<h1>{{ message }}</h1>’,

})

export class AppComponent {

  message = ‘Hello, Angular!’;

}

 

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Kuldeep Singh

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