You can also run it as: nvm exec 4.4.1 node test.js To run a script test.js on any installed NodeJS version, you can run the command: nvm run 4.4.1 test.js Similar to n you can use nvm to dynamically select a NodeJS version for a particular application. Due the same reason, one user’s nvm version can be different from the other. If other users need to maintain different node versions, you need to install nvm for each user. Therefore, those commands won’t be available to other users. It’s not exactly an application installed, but a set of shell commands. Please note that NVM is only installed for the current user. Output is also displayed here: $ nvm use 4.4.1 Now using node v4.4.1 (npm v4.0.3) Once the version is installed, you can switch to it anytime by running the following command. Nvm install v6.9.1 #this will install 6.9.1 Once this is setup, you can installed any NodeJS version as follows: nvm install v4.4.1 #this will installed 4.4.1 To verify whether it has been successfully installed, run the following command which should output nvm if it has been correctly installed command -v nvm # should output 'nvm' If ~/.bash_profile file is not there, you might need to create it first. If you are using Mac OS, you need to run following command. Then run the following command to enable nvm command, if you are trying to use nvm in linux. Following steps were extracted from the original documentation at nvm’s github repository. You can install setup NVM in your machine by running the following commands. NVM (Node Version Manager) can also be used to manage multiple NodeJS versions at the same time. This will provide the output: Running this script as v7.0.0 Multiple Node JS Versions with NVM I can run this script test.js using any NodeJS version using n as follows: n use 7.0.0 test.js Consider the following script: # test.js console.log("Running this script as : " + process.version) You can also dynamically change the NodeJS version for a particular application using n. Please place a comment if you have experienced otherwise. For linux, I suggest using NVM for switching between versions (discussed later in this post). You can also list the install NodeJS versions in your machine running just n, and then you can graphically switch between the installed versions.īased on my experience, at the time of this writing, this tool works best in OSX installations, it was a bit tedious for me to get this work in linux (Ubuntu, for an example). N latest # this will install the latest version of node N stable # this will install latest stable version of node If you don’t have the requested version installed on your machine, n will automatically download it, install it and then will switch the version. npm install -g nĪfter installing n, you can switch between different versions of NodeJS installations as follows. Depending on your operating systems and permissions, you might require sudo in front of. ‘n’ can be installed using npm simply by running the following command. That is the moment when the tools such as nvm or n comes for the rescue. At this moment, you need both of these applications running on top of different Node.JS versions without using containers such as Docker in your local machine. For example, say you have currently few applications running on NodeJS version 4.x.x and you need to go for ES6 features using NodeJS 6.x.x. This problem has become worse since new features are pouring into NodeJS and you have to keep up with the the flow. Switching between Node.When you are a NodeJS developer and you develop/run multiple applications on the local machine, this is a problem that you might have definitely encountered. Installing the older versions of Node.js that you need This installs the latest version of Node.js. Now you're ready to install node via Homebrew: run brew install node. Test if Node.js is already installed somewhere else with node -v: if it gives you a version number, uninstall it by following these instructions. If not, go to the the website brew.sh and copy-paste the command given in your terminal to install it. First, check if Homebrew is installed with brew -v. If you've not already done so, please make sure that Node.js is installed via Homebrew. In this tutorial I'll show you how to switch between multiple versions of Node.js on macOS with Homebrew.įirst we need to make sure that your environment is ready. But sometimes you'll need a different version of Node.js than the latest. It is also the best way to install Node.js and, with that, npm. Homebrew is an awesome tool for installing and managing packages installed on macOS.
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