Title: Getting Started with Angular CLI: A Comprehensive Guide

Introduction

Angular CLI (Command Line Interface) is a powerful tool that simplifies and streamlines the process of creating, building, and deploying Angular applications. It provides a set of commands and utilities to automate common development tasks, allowing developers to focus on writing code rather than managing project configurations.

In this blog, we'll take you through the basics of Angular CLI, explaining its core features and demonstrating how to set up a new Angular project. We'll also provide code snippets and images to help you follow along.

Prerequisites

Before we dive into Angular CLI, make sure you have the following prerequisites installed on your system:

1. Node.js: Angular CLI requires Node.js, so make sure you have it installed. You can download Node.js from nodejs.org.

2. npm (Node Package Manager): npm is included with Node.js. You can check if it's installed by running npm -v in your terminal.

Installing Angular CLI

To get started with Angular CLI, you'll need to install it globally on your system. Open your terminal and run the following command:

bashCopy codenpm install -g @angular/cli

This command installs Angular CLI globally, making it accessible from any directory on your system.

Creating a New Angular Project

Now that Angular CLI is installed, let's create a new Angular project. Navigate to the directory where you want to create your project and run the following command:

bashCopy codeng new my-angular-app

Replace my-angular-app with your desired project name. Angular CLI will prompt you with several configuration options, such as whether to include Angular routing and which stylesheets to use (CSS, SCSS, etc.). For this example, we'll choose the default options.

Angular CLI will then scaffold a new Angular application in the my-angular-app directory.

Serving the Application

To see your newly created Angular application in action, navigate to the project directory:

bashCopy codecd my-angular-app

Then, run the following command to serve your application locally:

bashCopy codeng serve

Angular CLI will compile your application and start a development server. You can access your app by opening a web browser and navigating to http://localhost:4200/.

Writing Code

Now that your Angular application is up and running, you can start writing code. Open your favorite code editor (e.g., Visual Studio Code) and navigate to the src/app directory. Here, you'll find the main application component in the app.component.ts file.

Let's make a simple change to the application title. Open the app.component.ts file and modify the title property:

typescriptCopy code// src/app/app.component.ts

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'My Angular App'; // Change the title here
}

Save the file, and Angular CLI will automatically detect the change and update your application in the browser.

Conclusion

In this guide, we introduced you to Angular CLI, a powerful tool for managing Angular projects. We walked you through the installation process, creating a new Angular project, serving the application, and making a simple code change.

Angular CLI simplifies many aspects of Angular development, making it easier to get started and manage complex projects. With the knowledge gained from this blog, you're well on your way to building robust Angular applications efficiently.

Happy coding!

In this blog post, we explored the basics of Angular CLI, from installation to creating a new project and making code changes. We hope this guide has provided you with a solid foundation for using Angular CLI in your web development projects. Remember that Angular CLI offers a wide range of commands and features beyond what we've covered here, so be sure to check out the official documentation for more in-depth information and advanced usage. Happy coding!