Setting up NVM (Node Version Manager) on macOS,

nvm is a version manager for node.js, designed to be installed per-user, and invoked per-shell. nvm works on any POSIX-compliant shell (sh, dash, ksh, zsh, bash) …

Install NVM:

Open a terminal window and run the following command to download the NVM installation script from the official GitHub repository:

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash

Open your shell configuration file in a text editor. Depending on your shell, it could be ~/.bash_profile, ~/.bashrc, ~/.zshrc, or ~/.profile. For example, to edit ~/.zshrc, you can use the following command:

nano ~/.zshrc

Add the following lines to the bottom of the file:

These lines will initialize NVM whenever you start a new shell session.

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

These lines will initialize NVM whenever you start a new shell session.

Save the changes and exit the text editor. In Nano, you can do this by pressing Ctrl + X, then Y, and then Enter.

After saving the changes, you need to reload your shell configuration for the changes to take effect. You can do this by either restarting your terminal or running

nvm --version

Install Node.js:

Once NVM is installed, you can use it to install Node.js. For example, to install the latest LTS version of Node.js, you can run:

This command installs the latest Long-Term Support (LTS) version of Node.js.

nvm install --lts

nvm install 14 // if you need node version 14 installed. 

Set Default Node.js Version (Optional)

If you want to set a default Node.js version to use, you can run:

// nvm alias default <version>

nvm alias default 14 // installed node 14 etc 

Verify Node.js Installation

You can verify that Node.js is installed correctly by running:

node -v // v14 etc. <version> installed.