How to install Node.js locally with nvm?
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How to install Node.js locally with nvm?

Manage multiple versions of Node.js.

By Mario Kandut

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Using the Node.js Version manager (nvm) makes installing and managing multiple versions of Node.js on a single local environment easy. I can only recommend using nvm, even if you only need one single version of Node.js, there is a high chance it won't stay like this and switching between different versions is easy.

Node.js Version Manager (NVM)

nvm is a version manager for node.js, designed to be installed per-user, and invoked per-shell. It is the preferred way to manage Node.js locally. In a production environment use the operating system package manager, or a server tooling to install and lock your specific version of Node.js.

How to install NVM

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nvm works on any POSIX-compliant shell (sh, dash, ksh, zsh, bash), in particular on these platforms: unix, macOS, and windows WSL.

To install or update nvm, run the install script. You can also download it and then run it, but cUrl or Wget with bash pipe are very convenient commands.

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash

or

wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash

Running either of the above commands downloads a script and runs it. This script clones the nvm repository into ~/.nvm and updates your profile (~/.bash_profile, ~/.zshrc, ~/.profile, or ~/.bashrc) to source the nvm.sh it contains.

After this restart your terminal or manually source your ~/.profile, like source ~/.bash_profile.

Then verify that it worked, with the command:

command -v nvm

The command should return nvm. Normally we could use which, but nvm is a shell script and not an application.

Some common trouble shooting tips can be found in the official documentation of nvm.

How to use nvm

After successful installation, we can type in nvm to get a list of available commands. We start with installing the latest LTS version of Node.js.

nvm install --lts

The output should look similar like this:

Installing latest Node.js version with NVM

The last line says now using node v14.7.0, which means that nvm is set to use Node.js version 14.7.0. We can verify by typing node --version.

If you want to install a different Node.js version, just use nvm ls-remote to list all versions and install it nvm install <VERSION>, would be a placeholder for the version number. After installing it, you have to tell nvm to use it with nvm use <VERSION>. Verify with node -v.

TL;DR

  • nvm is an easy way to manage multiple versions of Node.js
  • nvm is a shell script and invoked per shell.
  • Install a Node.js version with nvm install <VERSION>
  • Use an installed Node.js version with nvm use <VERSION>

Thanks for reading and if you have any questions, use the comment function or send me a message @mariokandut.

If you want to know more about Node, have a look at these Node Tutorials.

References (and Big thanks):

Node.js, HeyNode

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