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  1. DZone
  2. Coding
  3. JavaScript
  4. How To Change Node.JS Version

How To Change Node.JS Version

Plag check clear. Let's look at how to change Node.JS version using NPM, and how to update old projects.

By 
Johnny Simpson user avatar
Johnny Simpson
DZone Core CORE ·
Mar. 20, 22 · Tutorial
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In this quick guide, we'll be looking at the easiest way to change the Node.JS version using nvm.

Using NVM To Change node.JS Version

First, you will need to install nvm, which stands for node version management. To install nvm, you can do it by running the following script:

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

Alternatively, you can install it with wget:

Plain Text
 
wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash

After it is installed, you have to run the following command to start using it immediately - simply copy and paste this into your terminal and press enter to get going:

Plain Text
 
export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm

To test this has worked, write nvm into the terminal, and press enter. You should be greeted with the nvm help functions.

Changing Node.JS Version With NVM

To change Node.JS versions, we have to first download the version we want. Make sure you have nvm installed first. If you don't know the version you want to install, type nvm ls-remote to get a full list of all installable Node.JS versions.

Next, when you have selected the version you want to install, use nvm install to install it. The below code will install Node.JS v17.0.1:

Plain Text
 
nvm install 17.0.1

If you simply want to install the latest stable version of Node.JS, you can use the following command:

Plain Text
 
nvm install node

You can also use nvm install --lts instead!

Once the installation has finished, use the nvm use command to ensure the correct version is being used. The below code will ensure v17.0.1 is being used:

Plain Text
 
nvm use 17.0.1

As before, nvm use node or nvm use --lts will use the latest stable version. Now you have installed and changed your Node.JS version using nvm.

Upgrading an Old Project to a New Node.JS Version

If you have been stuck on an old version of Node.JS, your project may be dependent on old versions of packages. To fully upgrade your old package.json after changing the Node.JS version, you can use the npm package, npm-check-updates.

To install npm-check-updates, use the cd to move into the directory you want to upgrade. Then run the following command:

Plain Text
 
npx npm-check-updates

You will be asked to install npm-check-updates - type 'y' and then press enter.

After the installation is complete, you will be given a list of possible upgrades for your package.json. If you wish to proceed, run ncu -u to fully upgrade your package.json.

Now you will have changed the Node.JS version, and fully upgraded your old project with npm-check-updates.

Node.js Plain text

Published at DZone with permission of Johnny Simpson, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

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  • Deploy a Hyperledger Fabric v2 Web App Using the Node.js SDK
  • While Performing Dependency Selection, I Avoid the Loss Of Sleep From Node.js Libraries' Dangers
  • 5 Best Node.js Practices to Develop Scalable and Robust Applications

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