Installation and Uninstallation of Node.js and npm (MacOS)

Installation

You can install Node.js and npm by following the steps below:

1. Visit the Node.js website at http://nodejs.cn/download/.

2. Download the appropriate installer for MacOS.

3. Follow the installation instructions provided on the website to complete the installation process.

Uninstallation

If you have installed Node.js and npm using Homebrew, you can uninstall them using the following command:

brew uninstall node

If you have installed Node.js and npm using a .pkg installer package, you can uninstall them with the following command:

sudo rm -rf /usr/local/{bin/{node,npm},lib/node_modules/npm,lib/node,share/man/*/node.*}

Troubleshooting

Q: After changing my MacOS username, I encounter a "permission denied" error, such as EACCES: permission denied. How can I resolve this?

A: You can run the following command in non-secure mode to address the permission issue:

sudo npm install -g appium --unsafe-perm=true --allow-root

[Additional troubleshooting information here] [More troubleshooting tips here]

This post is translated using ChatGPT, please feedback if any omissions.