Yes, Angular CLI can be used with AngularJS projects. Still, it's important to note that AngularJS and Angular (also known as Angular 2+) are different frameworks. Angular CLI is designed explicitly for Angular (versions 2 and above). For AngularJS (version 1.x) projects, you can use the Yeoman generator for AngularJS or manually set up your project structure.

To update Angular CLI to the latest version, open the Command Prompt and run the following command:

npm install -g @angular/cli@latest

This command will update Angular CLI globally on your system to the latest available version.

Yes, you can use any code editor for AngularJS development. Visual Studio Code is popular among developers due to its rich features and excellent support for JavaScript and TypeScript. However, you can also use editors like Sublime Text, Atom, or WebStorm. Open the project folder in your preferred code editor to start coding.

The "ng serve" command compiles and serves your AngularJS application locally during development. It launches a development server that automatically reloads your application whenever changes are made to the source code. This lets you see your modifications' real-time effects without manually refreshing the browser.

To deploy your AngularJS application to a web server, you must build the application and then transfer the generated files to the server. Use the following command to build your application:

ng build

This command compiles your AngularJS application into static HTML, CSS, and JavaScript files that can be hosted on a web server. Once the build is complete, you can copy the generated files from the dist directory to your web server's document root or any desired location.

Operating AngularJS comes with several benefits, especially for web developers. Here’s a detailed explanation of the advantages in simple terms:

1. Two-Way Data Binding

AngularJS provides a feature called two-way data binding. This means that if you change something in the user interface (UI), it automatically updates the corresponding data in the model (back-end code) and vice versa. For example, if a user changes a field in a form, the underlying data updates without needing extra code. This helps reduce the time and effort needed for coding.

2. Model-View-Controller (MVC) Architecture

AngularJS follows the MVC pattern. This divides the application into three parts:

• Model: Manages data.

• View: Manages how data is displayed (UI).

• Controller: Connects the Model and View by managing the logic.

This separation makes it easier to maintain and test the code since each part is handled independently.

3. Reusable Components (Directives)

AngularJS allows developers to create custom HTML tags or attributes, called directives, that perform specific tasks. These directives help make the code modular, reusable, and easier to understand. For example, you can create a directive for a reusable button that you can use throughout the application, making development faster and more organized.

4. Dependency Injection

Dependency Injection (DI) is a feature in AngularJS that makes it easier to manage different parts of the application. It helps in managing services (like data or functions) and ensures that these services are available wherever needed. This simplifies testing and makes the application more flexible.

5. Single Page Application (SPA) Support

AngularJS is particularly useful for building Single Page Applications (SPAs). In SPAs, the entire website loads once, and then only specific sections update dynamically. This creates a faster and smoother user experience because it avoids reloading the entire webpage for each interaction.

6. Testing Made Easy

Since AngularJS separates different parts of the code (like logic, data, and UI), it becomes easier to test them individually. It also has built-in tools that support unit testing and end-to-end testing, which makes it easier to spot bugs and ensure the code works correctly.

7. Community Support and Resources

AngularJS has a large and active community. This means if you face any issues or need help, there are many resources available online, including forums, tutorials, and documentation. The strong community ensures continuous updates and improvements to the framework.

8. Cross-Platform Compatibility

Web applications built with AngularJS work well across different platforms, including mobile devices and desktops. This makes it easier to create applications that function smoothly on a variety of devices.

9. Efficient Code Management

AngularJS simplifies the management of complex applications by organizing code into modules. This modular structure ensures that the code is cleaner, more manageable, and easier to maintain, especially as the application grows in size.

10. Flexibility with Filters

AngularJS provides filters that help format and manipulate data. For instance, you can use filters to format numbers, dates, or even sort data before displaying it on the UI. This feature helps present data in a more user-friendly way without writing complex code.