How to Change PORT Number in React
How to change port number in react
To change the port number for a React application created with Create React App, follow these steps:
Using an Environment File:
Create a file named .env in the root directory of your project. This file allows you to set environment variables for your application.
Inside the .env file, define the port number by setting an environment variable. This method is simple and effective for consistently setting the port across different environments.
Once you set the port number in the .env file, start your React application as usual, and it will run on the specified port.
Using Command Line Options:
You can specify the port number directly when you start the application using a command line option. This method is useful for temporary changes or quick tests.
On Windows, set the port number using a command prompt command. On Unix-based systems like macOS or Linux, you can set it directly in the terminal.
This approach allows you to override the default port number for a single session without changing any project files.
Modifying Project Configuration:
In the project's configuration file, usually package.json, you can modify the start script to include a port setting.
This method is suitable if you want the port change to be permanent and version-controlled as part of your project configuration.
It may require additional tools or libraries for compatibility across different operating systems.
By following one of these methods, you can effectively change the port number your React application uses, allowing it to run on a different port as needed.
1. How to Change the Port Number in a React Application
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