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nvm per Project Folder

If you want to set a specific node version for the certain project, you can do so by created one new .nvmrc file and modifying your .bashrc.

.nvmrc​

Just cd (cd /mnt/sdc2/static/textblock in my case) to your project root folder and run:

echo "10" > .nvmrc

.nvmrc file will be crated wih just one line. 10 is the required node version.

.bashrc​

Find the .bashrc file in your home directory (cd ~) and add this code to the end of the .bashrc:

.bashrc
cdnvm() {
    cd "$@";
    nvm_path=$(nvm_find_up .nvmrc | tr -d '\n')

    # If there are no .nvmrc file, use the default nvm version
    if [[ ! $nvm_path = *[^[:space:]]* ]]; then

        declare default_version;
        default_version=$(nvm version default);

        # If there is no default version, set it to `node`
        # This will use the latest version on your machine
        if [[ $default_version == "N/A" ]]; then
            nvm alias default node;
            default_version=$(nvm version default);
        fi

        # If the current version is not the default version, set it to use the default version
        if [[ $(nvm current) != "$default_version" ]]; then
            nvm use default;
        fi

        elif [[ -s $nvm_path/.nvmrc && -r $nvm_path/.nvmrc ]]; then
        declare nvm_version
        nvm_version=$(<"$nvm_path"/.nvmrc)

        declare locally_resolved_nvm_version
        # `nvm ls` will check all locally-available versions
        # If there are multiple matching versions, take the latest one
        # Remove the `->` and `*` characters and spaces
        # `locally_resolved_nvm_version` will be `N/A` if no local versions are found
        locally_resolved_nvm_version=$(nvm ls --no-colors "$nvm_version" | tail -1 | tr -d '\->*' | tr -d '[:space:]')

        # If it is not already installed, install it
        # `nvm install` will implicitly use the newly-installed version
        if [[ "$locally_resolved_nvm_version" == "N/A" ]]; then
            nvm install "$nvm_version";
        elif [[ $(nvm current) != "$locally_resolved_nvm_version" ]]; then
            nvm use "$nvm_version";
        fi
    fi
}
alias cd='cdnvm'
cd $PWD

Usage​

Then run in your project folder:

nvm use

nvm use will traverse directory structure upwards from the current directory looking for the .nvmrc file. And you should see:

$ nvm use
Found '/mnt/sdc2/static/textblock/.nvmrc' with version <10>
Now using node v10.23.0 (npm v6.14.8)

After that, all other parent folders will use the default node version.

You can check current version of node in certain folder:

node -v     # or node --version

Source: github.com: .nvmrc