nodejs cannot be deleted cleanly

When I was using nodejs for development recently, I encountered a problem: no matter how I delete it, it cannot be deleted completely. This bothered me a lot and I tried many methods without success. After a long period of exploration and experimentation, I finally found a solution and would like to share it with you.

Problem Analysis

First of all, let’s analyze the reasons for this problem. When using nodejs for development, we usually need to debug in the local environment. When installing dependent packages, npm will install the dependent packages in the node_modules directory.

When we need to delete a dependent package, we can uninstall it by running npm uninstall packageName directly. But at this time, the remaining files are not just the code and documentation of the package. , also includes the package's dependencies and some other files. This leads to a problem: when deleting a dependent package, you must delete all dependencies and files of the package at the same time to truly uninstall it.

Solution

To address this problem, we have two main solutions: manual deletion and use of third-party tools.

Manual deletion

Manual deletion is the most basic method. It requires us to delete related files and dependencies in the node_modules directory ourselves. The specific steps are as follows:

1. Open the command line and enter your project root directory;
2. Execute npm ls packageName to list all the dependencies of the package ;
3. Enter the directory where the dependencies are located one by one, and execute npm ls packageName until the final dependency is found;
4. Execute npm uninstall packageName, Uninstall the dependency package;
5. Delete the dependency and all its dependencies.

The manual deletion method is more cumbersome and requires us to be very familiar with the dependencies of the entire project and also requires some basic Linux commands.

Use third-party tools

Manual deletion is difficult, you may wish to consider using third-party tools. Here are some useful tools: npm-check, nrm, rimraf.

npm-check: This tool can help us check the dependencies of the current project, including which dependencies are mediated, which versions are outdated, etc. Use the npm-check --save command to display all dependencies in the current project and whether they are updated on the command line.

nrm: When we need to switch to different npm sources, we can use the nrm tool to help us switch conveniently and quickly. Execute the nrm ls command to list all npm sources, and use the nrm use sourceName command to switch to the specified npm source.

rimraf: This is a cross-platform deletion tool. Compared with the rm command that comes with Linux, rimraf can delete a folder and empty all the folders it contains. When we need to delete a folder and all its dependencies and files, we can use the rimraf path/to/folder command to achieve this.

Conclusion

Using nodejs to develop is a very interesting and challenging process. When problems arise, we need to be patient to find solutions. Regarding the problem of being unable to delete nodejs dependencies, manual deletion is accurate but tedious and difficult. Using third-party tools allows us to quickly solve this problem.

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