In order to use nvm you need to install in through .exe file.
Here is the link to download nvm. Browse this link and download nvm-setup.zip file. Simply extract and install the exe file.
Now playground is ready to play. In my case my node version was 12.18.2 . In my development process, there is a package which was incompatible with this version. That npm package need to install node 12.18.3. Then I decide to install nvm.
After setup the nvm check
nvm -v to check the version.
In order to check all version under nvm type
nvm list . you will get the all version that nvm can switch.
After setup the nvm I need to install 12.18.3 So I did it through nvm by below command.
nvm install 12.18.3
After install that version you need use that. To use that paste below command in your terminal.
nvm use 12.18.3