angular ng serve with custom port with code examples 2

Angular is a popular open-source framework that allows developers to build client-side web applications easily. With Angular, developers can create dynamic and complex web applications with a wide range of features and functionalities. Angular CLI is a set of command-line tools that makes it easy to create, develop, and deploy Angular applications. One of the features of the Angular CLI is the ng serve command. It enables developers to start a development server and host their Angular application.

By default, ng serve command runs on port 4200. However, sometimes, developers might want to run their application on a custom port, for example, when they have multiple projects running on the same machine or when they need to test the application on a specific port. In this article, we will explore how to run an Angular application with a custom port using the ng serve command with code examples.

Setting up an Angular project

Before we can start serving an Angular application with a custom port, we need to create an Angular project. If you already have an Angular project, you can skip this section and move to the next one.

To create an Angular project, open a terminal window and run the following command:

ng new my-app

This command will create an Angular project named my-app. Once the command finishes, cd into the project directory by running the following command:

cd my-app

Serving an Angular application with a custom port

To serve an Angular application with a custom port, we need to modify the ng serve command. By default, the ng serve command starts a server on port 4200. To start a server on a different port, we can use the --port flag followed by the port number we want to use.

For example, to start a server on port 5000, run the following command:

ng serve --port 5000

This will start a development server and host the Angular application on port 5000. You can now open a browser and navigate to http://localhost:5000 to view the application.

If the port you specified is already in use, you will get an error message similar to the following:

Port 5000 is already in use. Use '--port' to specify a different port.

In this case, you need to choose a different port number and run the ng serve command again.

Another way to set a custom port for your Angular application is to modify the angular.json file. In this file, you can define the default settings for your Angular project, including the port number to use when serving the application. To modify the port number, follow these steps:

1. Open the angular.json file in your project's root directory.

2. Locate the serve property in the file. This property contains the default settings for serving the Angular application.

3. In the serve property, locate the port property and change its value to the port number you want to use.

For example, to set the default port number to 5000, modify the serve property as follows:

"serve": {
  "builder": "@angular-devkit/build-angular:dev-server",
  "options": {
    "browserTarget": "my-app:build",
    "port": 5000
  },
  "configurations": {
    "production": {
      "browserTarget": "my-app:build:production"
    }
  }
}

This will set the default port number to 5000. You can now run the ng serve command without specifying the port number, and it will use the port number specified in the angular.json file.

Conclusion

In this article, we explored how to run an Angular application with a custom port using the ng serve command. We demonstrated how to set a custom port number using the --port flag and how to modify the default port number in the angular.json file. By using these techniques, developers can easily run their Angular applications on custom port numbers, making it easier to manage multiple projects and test their applications on specific ports. We hope that this article has been helpful for you, and you can start serving your Angular applications on custom ports.

Sure! We can provide more information about the previous topics mentioned in the article.

Angular

Angular is a popular front-end web application platform that provides a comprehensive set of tools and features to build dynamic and complex web applications. It is a complete rewrite of AngularJS and has been developed by Google and a community of developers. Angular provides a declarative approach to building web applications, making it easier to write and maintain complex applications. It uses TypeScript, a superset of JavaScript, and provides features such as dependency injection, reactive extensions, and a component-based architecture.

Angular CLI

Angular CLI (Command Line Interface) is a set of command-line tools that makes it easy to create, develop, and deploy Angular applications. It is built on Node.js and provides an extensive set of commands for creating, building, testing, and deploying Angular applications. Angular CLI provides a standardized project structure and automates common tasks, such as generating components, services, and modules. It also provides a development server to host applications during the development phase, making it easier to test and debug applications.

ng serve command

The ng serve command is a command provided by Angular CLI that starts a development server and hosts the Angular application. It provides a live-reload feature that automatically updates the application when changes are made, making the development process faster and more efficient. By default, the ng serve command runs on port 4200 and can be accessed by navigating to http://localhost:4200 in a browser. The ng serve command has various options and flags that can be used to customize its behavior, such as the --port flag, which sets the port number to use.

Custom port

A custom port refers to using a port number other than the default port number for a particular service or application. For example, when running an Angular application using the ng serve command, the default port number is 4200. However, if multiple applications are running on the same machine or if a developer wants to test the application on a specific port, they can specify a custom port number using the --port flag when running the ng serve command. A custom port number can also be set in the angular.json file to make it the default port for the Angular application.

In conclusion, Angular, Angular CLI, ng serve command, custom port, and angular.json file are important concepts that every Angular developer should be familiar with. These concepts help to make the development process faster, more efficient, and customizable. By understanding these concepts, developers can create and deploy complex Angular applications with ease.

Popular questions

1. What is the ng serve command?
   Answer: The ng serve command is a command provided by Angular CLI that starts a development server and hosts the Angular application.

2. How can you customize the port number when using ng serve?
   Answer: You can customize the port number by using the --port flag followed by the port number you want to use. For example, ng serve --port 5000 starts a server on port 5000.

3. Can you set a default port number for your Angular application?
   Answer: Yes, you can set a default port number for your Angular application by modifying the angular.json file. In this file, you can define the default settings for your Angular project, including the port number to use when serving the application.

4. What are some benefits of using a custom port number for your Angular application?
   Answer: Some benefits of using a custom port number for your Angular application include the ability to manage multiple projects running on the same machine and the ability to test the application on a specific port.

5. What is Angular CLI?
   Answer: Angular CLI (Command Line Interface) is a set of command-line tools that makes it easy to create, develop, and deploy Angular applications. It provides an extensive set of commands for creating, building, testing, and deploying Angular applications, and includes a development server to host applications during the development phase.

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Framework