What should I do if nodejs cannot close cmd?

Node.js is a very popular JavaScript runtime environment that allows developers to write and run applications on the server using JavaScript code. But when Node.js is running on the Windows operating system, a confusing problem occurs, that is, when the command prompt window is closed, the Node.js process does not terminate immediately, but continues to run.

The root of this problem can be traced back to a process inheritance mechanism in the Windows operating system. If a process is not started on Windows, it inherits the console of its parent process, so when the console window is closed, the parent process continues to run.

There are many ways to solve this problem. Here are some commonly used ones:

1. Use the Ctrl C keyboard shortcut: Press the Ctrl C keyboard shortcut in the console window. Stop the Node.js process immediately. This shortcut will send an interrupt signal to the Node.js process, telling it to terminate.

2. Use the NPM tool: You can use the NPM tool to open a new terminal window and run the Node.js application in it. This window is independent and ensures that the Node.js process also terminates when closed.

3. Use the --no-deprecation parameter: When running a Node.js application, add the --no-deprecation command line parameter to disable the console warning message. These warning messages may prevent you from shutting down the Node.js process in the console.

4. Use the forever tool: forever is a commonly used Node.js process management tool, which can run Node.js applications in the background and continue to run when the console window is closed. You can use forever to manage the Node.js process, ensuring that it terminates when the console is closed.

In short, it is very important to shut down the Node.js process to free up operating system resources and prevent application data loss. Although there may be some problems with shutting down the Node.js process on Windows, using the above method can help you circumvent these problems and ensure that your Node.js application runs safely.

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