How to install Node.js on Astra?

To install Node.js on Astra Linux, you can use the following methods:

Via apt repositories: This is the recommended way, as it provides easy updates and dependency management.
- Update the package list:
```
sudo apt update
```
- Install Node.js and npm:
```
sudo apt install nodejs npm
```
Using n (Node.js version manager): This version manager is convenient for installing and switching between different Node.js versions.
- Install n:
```
sudo npm install -g n
```
- Install the latest stable version of Node.js:
```
sudo n lts
```
- You can install a specific version, for example:
```
sudo n 18.12.1
```
- View the list of installed versions and select the active one:
```
n
```
From source code: This method is more labor-intensive but allows you to get the latest version or compile Node.js with specific options.
- Download the source code from the official Node.js website.
- Unpack the archive.
- Build and install:
```
cd node-<version>
./configure
make
sudo make install
```

After installation, regardless of the method, you should verify the success of the installation:

node -v
npm -v

Both commands should output the versions of Node.js and npm, respectively.