AngularJS is a JavaScript framework for building dynamic web applications. It was first released in 2010 by Google and is now maintained by a community of developers. The term "mean" is not directly related to AngularJS. However, it is commonly used in the context of a popular technology stack for building web applications, known as the MEAN stack.

By implementing security measures such as HTTPS, secure authentication mechanisms, input validation, and encryption, you can protect user data and prevent unauthorized access. A secure application builds trust with users, which can increase customer retention and loyalty. Overall, ensuring the security of your MEVN stack application is crucial to protecting your business, users, and reputation.

The MEAN stack consists of four key technologies:

• MongoDB - a NoSQL database
• Express.js - a web application framework for Node.js
• AngularJS - a front-end JavaScript framework
• Node.js - a JavaScript runtime for building server-side applications
• Together, these technologies provide a complete solution for building modern web applications. AngularJS is used on the front-end to create dynamic and interactive user interfaces, while the other technologies handle the back-end data storage and processing.
• AngularJS is a powerful tool for building complex web applications, and when combined with other technologies in the MEAN stack, it can provide a complete solution for building modern, scalable, and high-performance web applications.

There are several benefits to using AngularJS in web application development, especially when combined with the other technologies in the MEAN stack:

Two-way data binding: AngularJS allows for automatic synchronization of data between the model and the view, making it easier to keep data up-to-date and reducing the amount of code needed to manage the user interface.

Dependency injection: AngularJS provides a built-in dependency injection system that helps manage dependencies between different parts of an application. This makes it easier to write modular and maintainable code.

MVC architecture: AngularJS follows the Model-View-Controller (MVC) architecture, which helps to separate the concerns of different parts of an application. This makes it easier to maintain and update the codebase over time.

Extensibility: AngularJS provides a range of modules and libraries that can be easily integrated into an application. This makes it possible to extend the functionality of an application quickly and efficiently.

Large community and support: AngularJS has a large community of developers and enthusiasts, making it easy to find resources, documentation, and support for any development needs.

Overall, AngularJS is a powerful and versatile tool for building modern web applications that are fast, efficient, and maintainable. When used in combination with other technologies in the MEAN stack, it provides a complete solution for building robust and scalable web applications.