Introduction to Angular CLI with JavaScript

Angular CLI (Command Line Interface) is a powerful command line tool for developing Angular applications. It provides developers with a set of commands that automate the process of creating, building, testing, and deploying Angular projects. In this guide, we will explore the basics of Angular CLI and how it can be used with JavaScript.

Installing Angular CLI

Before we dive into the details of Angular CLI, let's install it on our system. Angular CLI is based on Node.js, which means we need to have Node.js installed first. Once we have Node.js, we can install Angular CLI using the following command:

npm install -g @angular/cli

This command installs Angular CLI globally on our system, which means we can access it from anywhere on the command line.

Creating a New Angular Project

Once we have Angular CLI installed, we can create a new Angular project using the following command:

ng new project-name

This command creates a new Angular project named project-name in the current directory. Angular CLI provides us with a default project structure and sets up all the necessary dependencies and configurations for us.

Running the Application

After creating a new Angular project, we can run it using the following command:

ng serve

This command starts the local development server and serves the application on http://localhost:4200. We can open the application in our web browser and see the default Angular welcome page.

Generating Components

Angular CLI provides us with a set of commands to generate different types of components in our application. For example, to generate a new component named sample, we can use the following command:

ng generate component sample

This command creates a new folder named sample in our project directory and generates all the necessary files for the component, including the HTML template and the TypeScript code.

Building the Application

After we have developed our application, we can build it for production using the following command:

ng build --prod

This command compiles our application and generates a set of optimized files that are ready for deployment. The output files are stored in the dist directory of our project.

Conclusion

In this guide, we have explored the basics of Angular CLI with JavaScript. We have learned how to install Angular CLI, create a new Angular project, run the application, generate components, and build the application for production. Angular CLI is a powerful tool that simplifies the development process and makes it easier for developers to build high-quality Angular applications.