node version check in cmd with code examples

Node.js is a popular JavaScript runtime that allows developers to build server-side applications using JavaScript. One of the first things you need to do when working with Node.js is to make sure you have the correct version installed on your system. In this article, we will show you how to check the version of Node.js in the Command Prompt (CMD) on Windows and Terminal on Mac/Linux, along with some code examples.

To check the version of Node.js in CMD on Windows, simply open the Command Prompt and type the following command:

node -v

This will output the version of Node.js currently installed on your system. For example, if you see "v14.13.0" in the output, that means you have version 14.13.0 of Node.js installed.

On Mac and Linux, you can check the version of Node.js in the Terminal by using the same command:

node -v

This will also output the version of Node.js currently installed on your system.

It's also possible to check the version of Node.js programmatically by using the process.version property. Here is an example:

console.log(process.version);

This will output the version of Node.js as a string. For example, "v14.13.0".

It's worth noting that you can also check the version of npm, which is the package manager for Node.js, by using the following command:

npm -v

This will output the version of npm currently installed on your system.

In conclusion, checking the version of Node.js is a simple task that can be done in just a few seconds. It's an important step to ensure that you are working with the correct version of the software and that your code will run correctly on different systems. Whether you're using the Command Prompt on Windows or the Terminal on Mac/Linux, the process is the same. Additionally, you can check the version of Node.js programmatically by using the process.version property, which can be useful in certain situations.

Node.js is a powerful tool for building server-side applications, but it can be challenging to manage different versions of the software. This is where version managers come in. A version manager allows you to easily switch between different versions of Node.js on your system, making it easier to work with different projects that may have different version requirements.

One popular version manager for Node.js is nvm (Node Version Manager). nvm is available for Windows, Mac, and Linux and allows you to easily install, manage and switch between different versions of Node.js.

To install nvm on Windows, you can download the installer from the GitHub releases page and run it on your system. On Mac and Linux, you can install nvm by running the following command in the terminal:

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

Once nvm is installed, you can use it to install a specific version of Node.js. For example, to install version 14.13.0 of Node.js, you can use the following command:

nvm install 14.13.0

You can also use nvm to see the list of installed Node.js versions,

nvm ls

or to see which version is currently in use

nvm current

Another popular version manager is n (Node Version Manager). n is also available for Windows, Mac and Linux and allows you to easily install, manage and switch between different versions of Node.js.

To install n on your system, you can use the following command:

npm install -g n

Once n is installed, you can use it to install a specific version of Node.js. For example, to install version 14.13.0 of Node.js, you can use the following command:

n 14.13.0

You can also use n to see the list of installed Node.js versions,

n ls

or to see which version is currently in use

n current

In summary, version managers like nvm and n make it easy to manage different versions of Node.js on your system. By using a version manager, you can easily switch between different versions of Node.js, making it easier to work with different projects that have different version requirements.

Popular questions

1. How do I check the version of Node.js in the Command Prompt (CMD) on Windows?
   Answer: To check the version of Node.js in CMD on Windows, simply open the Command Prompt and type the following command: node -v. This will output the version of Node.js currently installed on your system.

2. How do I check the version of Node.js in the Terminal on Mac/Linux?
   Answer: On Mac and Linux, you can check the version of Node.js in the Terminal by using the command: node -v. This will also output the version of Node.js currently installed on your system.

3. How can I check the version of Node.js programmatically?
   Answer: You can check the version of Node.js programmatically by using the process.version property. Here is an example: console.log(process.version);. This will output the version of Node.js as a string.

4. How do I check the version of npm, which is the package manager for Node.js?
   Answer: You can check the version of npm by using the following command: npm -v. This will output the version of npm currently installed on your system.

5. What are some popular version managers for Node.js and how can I use them to manage different versions of Node.js?
   Answer: Some popular version managers for Node.js are nvm (Node Version Manager) and n (Node Version Manager). Both nvm and n are available for Windows, Mac and Linux. They allow you to easily install, manage and switch between different versions of Node.js. You can install nvm by downloading the installer from the GitHub releases page or by running the command curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash in the terminal. Similarly, you can install n by running the command npm install -g n in the terminal. Once installed, you can use the version manager's commands to install, manage and switch between different versions of Node.js.

Tag

Nodeversioning