A Complete Guide - Creating a New Angular Project

Last Updated: 03 Jul, 2025   
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Creating a New Angular Project: Detailed Guide with Important Information

1. Install Node.js and npm

  • Node.js: Angular requires Node.js to run development servers and tools.
  • npm (Node Package Manager): This is included with Node.js and is used to install Angular CLI and other dependencies.

Important Info:

  • Ensure that you have the latest stable version of Node.js and npm installed.
  • Check your installation by running node -v and npm -v in your terminal or command prompt.

2. Install Angular CLI

Angular CLI (Command Line Interface) is a powerful tool that helps you initialize, develop, scaffold and maintain Angular applications.

Steps to Install Angular CLI:

  • Open your terminal or command prompt.
  • Run the following command: npm install -g @angular/cli

Important Info:

  • The -g flag installs Angular CLI globally, making it accessible from anywhere on your machine.
  • Verify the installation by running ng version to check the installed version.

3. Create a New Angular Project

Now that you have Angular CLI installed, you can create a new project.

Command to Create a New Project:

  • Use ng new my-angular-app where my-angular-app is the name of your project.

Important Options During Project Creation:

  • Stylesheet Format: Choose between CSS, SCSS, Sass, Less, or Stylus.
  • Routing: Include routing in your project for navigation purposes. Use --routing to enable this option.
  • Package Manager: Specify the package manager to use (npm or yarn).

Important Info:

  • The ng new command sets up a new project with all the necessary dependencies and configurations.
  • Angular CLI creates a default project structure and files that align with Angular best practices.

4. Project Structure

Understanding the project structure is crucial for navigating and managing your Angular applications.

Key Directories and Files:

  • src/: Contains the main source code.
    • assets/: Place images, fonts, and additional files here.
    • app/: Core application code resides here.
      • app.module.ts: Entry point for your Angular modules. Defines the root module and root injector.
      • app.component.ts: Root component of the app.
      • app.component.html: HTML template for the root component.
      • app.component.css: Styles for the root component.
    • index.html: Main HTML file where the app is bootstrapped.
    • styles.css: Global styles for the application.
  • angular.json: Contains configuration settings for the entire project.
  • tsconfig.json: TypeScript configuration for the project.

Important Info:

  • Angular CLI generates a project with a recommended folder structure to promote better organization and maintainability.
  • Customize the project structure according to your project requirements or team conventions.

5. Run the Angular Application

After creating the project, you can serve it locally to see it in action.

Command to Serve the Application:

  • Run ng serve in the project directory.
  • The application will be served at by default.

Important Info:

  • The --open flag (ng serve --open) opens the application in your default browser automatically.
  • Use the --proxy-config flag to specify a proxy configuration if you need to handle CORS issues or proxy API requests.

6. Explore and Edit the Code

Explore the generated files to familiarize yourself with the setup.

Common Tasks:

  • Modify app.component.html to update the content displayed on the homepage.
  • Create new components, services, or modules using Angular CLI commands like ng generate component new-component.

Important Info:

  • Angular CLI provides several commands to generate and scaffold code efficiently.
  • The official Angular documentation is a valuable resource for understanding the concepts and best practices in Angular development.

7. Build the Application for Production

Once your application is ready, you can build it for production.

Command to Build the Application:

  • Run ng build --prod or ng build --configuration=production to create an optimized build.

Important Info:

  • The --prod flag optimizes the build, including Ahead-of-Time (AOT) compilation and tree-shaking.
  • The build output directory is typically dist/.

Conclusion

Creating a new Angular project involves setting up the environment, initializing the project using Angular CLI, understanding the project structure, running the application locally, and building it for production. By following these steps and keeping important information in mind, you can efficiently create and manage Angular applications.

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Step-by-Step Guide: How to Implement Creating a New Angular Project

Complete Examples, Step-by-Step for Beginners: Creating a New Angular Project

Prerequisites

Before you begin, make sure you have the following installed:

  1. Node.js and npm (Node Package Manager):

Top 10 Interview Questions & Answers on Creating a New Angular Project

Top 10 Questions and Answers for Creating a New Angular Project

1. What are the prerequisites for creating a new Angular project?

  • Node.js and npm (Node Package Manager): Angular CLI (Command Line Interface) requires Node.js and npm to be installed on your machine. You can check your installation by running node -v and npm -v in your terminal.
  • Angular CLI: You need to have Angular CLI installed globally. You can install it using the following command: 
    npm install -g @angular/cli

2. How do I create a new Angular project using Angular CLI?

Creating a new Angular project is straightforward with Angular CLI. Open your terminal and run:

ng new my-angular-app

Replace my-angular-app with your preferred project name. The CLI will prompt you with options to include routing and choose a stylesheet format (CSS, SASS, SCSS, etc.).

3. What does Angular CLI generate by default?

When you run ng new my-angular-app, Angular CLI generates a default project structure including:

  • App module: The root module of your application.
  • Components: The AppComponent, which is the main component of your application.
  • Services, Directives, Pipes: Placeholders for your services, directives, and pipes.
  • Stylesheets: A default stylesheet in the format you selected.
  • Configuration files: Files like tsconfig.json for TypeScript configuration and angular.json for project structure configuration.
  • Testing files: Jest/Karma for testing, along with a sample test file for AppComponent.

4. How do I serve the application locally?

After creating the project, navigate into your project directory:

cd my-angular-app

Then, use Angular CLI to serve the application locally:

ng serve

This command compiles your application and starts a local development server. You can access it by navigating to in your web browser.

5. How do I add components, services, and other files in an Angular project?

You can generate components, services, and other files using Angular CLI:

  • Generate a Component: 
    ng generate component my-component
  • Generate a Service: 
    ng generate service my-service
  • Generate a Directive, Pipe, Class, Interface, Enum: 
    ng generate directive my-directive
ng generate pipe my-pipe
ng generate class my-class
ng generate interface my-interface
ng generate enum my-enum

6. How can I change the default stylesheet format?

If you want to change the default stylesheet format from CSS to something else, you can do so while creating the project by appending the --style flag:

ng new my-angular-app --style scss

Alternatively, you can manually change the style format in the angular.json file under the projects.my-angular-app.architect.build.options.styles section.

7. How do I include routing in the project?

To include routing in your project, you can add it during the project creation by using the --routing flag:

ng new my-angular-app --routing

This will set up your project to use Angular's routing capabilities. If you've already created a project, you can add routing by using the Angular CLI:

ng generate module app-routing --flat --module=app

8. How can I install third-party libraries in an Angular project?

To install third-party libraries in an Angular project, use npm. For example, to install Angular Material, you would run:

npm install @angular/material @angular/animations

After installation, you may need to import the modules and other setup steps provided in the library's documentation.

9. How do I update Angular CLI and Angular packages?

To update Angular CLI, you can use npm:

npm install -g @angular/cli@latest

To update the Angular packages in your project, first, remove all node modules:

rm -rf node_modules

Then, delete package-lock.json if it exists and run:

npm install @angular/core@latest @angular/cli@latest --save

Lastly, reinstall dependencies:

npm install

10. How can I run unit tests and end-to-end tests in an Angular project?

Unit tests can be run using the following command:

ng test

This starts Karma, a test runner that executes your test suites in a browser.

End-to-end (E2E) tests can be run using:

ng e2e

This command starts a web server, launches the application in a testable environment, and runs the end-to-end test suites using Protractor by default.

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