AngularJS and angular difference
Understanding the Difference Between AngularJS and Angular
AngularJS and angular difference
AngularJS and Angular are both popular front-end web frameworks developed by Google, but they have significant differences. AngularJS, also known as Angular 1.x, is the original version of the framework and is based on JavaScript. It uses two-way data binding, controllers, and scope to build dynamic web applications. Angular, on the other hand, is a complete rewrite, known as Angular 2+, and is based on TypeScript. It introduces concepts such as components, modules, services, and a more powerful and flexible architecture. While AngularJS is considered more suitable for smaller projects or legacy applications, Angular is recommended for building large-scale, high-performance applications.
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1 - AngularJS is a JavaScript framework developed and maintained by Google. It was released in 2010 and is based on MVC (Model View Controller) architecture. On the other hand, Angular is a complete rewrite of AngularJS and is often referred to as Angular 2+ or just Angular. It was released in 2016 and is based on a component based architecture.
2) AngularJS uses JavaScript (ES5) while Angular uses TypeScript, a superset of JavaScript. TypeScript offers advantages such as static typing, which helps catch errors at compile time.
3) AngularJS uses controllers to manage the application's data, while Angular uses components as the building blocks of the application. Components are more lightweight and easier to work with compared to controllers.
4) AngularJS uses digest cycle for change detection, which can sometimes lead to performance issues. Angular uses a more efficient change detection mechanism called Zone.js.
5) AngularJS uses $scope for communication between controllers and views. In Angular, communication between components is done through input and output properties, making the application more maintainable and easier to understand.
6) AngularJS has a limited CLI (Command Line Interface) for generating boilerplate code and scaffolding projects. Angular, on the other hand, comes with a powerful CLI tool that automates tasks such as project setup, code generation, and testing.
7) AngularJS has a two way data binding mechanism, meaning changes in the view are immediately reflected in the model and vice versa. Angular uses a unidirectional data flow through the use of property binding and event binding.
8) AngularJS has a limited set of decorators for extending and modifying built in features. Angular introduces decorators as a core concept and provides more flexibility in extending and customizing features.
9) AngularJS follows a more imperative style of programming, where developers are required to write specific instructions for every task. Angular promotes a more declarative style of programming, where developers define what needs to be done, and Angular takes care of how to do it.
10) AngularJS does not have built in support for server side rendering. Angular Universal, a library in Angular, provides server side rendering capabilities, resulting in better performance and SEO optimization for Angular applications.
11) AngularJS has a steep learning curve due to its complex concepts and global scope. Angular, with its improved documentation, better practices, and modularity, offers a more gradual learning path for developers.
12) AngularJS is no longer actively maintained or supported by the Angular team, as focus has shifted to Angular. Angular receives regular updates, bug fixes, and new features, making it a more future proof choice for building modern web applications.
13) Angular provides support for lazy loading modules, allowing large Angular applications to load faster by only loading the required modules when needed. AngularJS does not offer built in support for lazy loading.
14) Angular comes with built in support for features like dependency injection, dynamic imports, HttpClient for making HTTP requests, and integrated testing tools, making it a comprehensive framework for building scalable and maintainable applications.
In your training program for students, you can highlight the differences between AngularJS and Angular to help them understand the evolution of the framework and the key benefits of using Angular for modern web development projects. Providing hands on exercises, real world examples, and guided projects will also enhance the learning experience and prepare them for building robust applications using Angular.
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