Make NVM work like RVM

I've used RVM (Ruby Version Manager) for years and it has a great feature of automatically switching your Ruby version as you navigate to to project folders to use the Ruby version specified for that project. For NVM (Node Version Manager) you have to manually tell nvm to switch node versions via nvm use.    If you add the following code to your bash configuration, nvm will switch automatically like rvm does when it finds a .nvmrc file.  (note: I am not the original author of this code.  I tweaked it from another source, but I don't recall where that was).

# fix NVM to work like RVM
#
find-up () {
    path=$(pwd)
    while [[ "$path" != "" && ! -e "$path/$1" ]]; do
        path=${path%/*}
    done
    echo "$path"
}

cdnvm(){
    cd $@;
    nvm_path=$(find-up .nvmrc | tr -d '[:space:]')
 
    # 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)
  
        # Add the `v` suffix if it does not exists in the .nvmrc file
        if [[ $nvm_version != v* ]]; then
            nvm_version="v""$nvm_version"
        fi
  
        # If it is not already installed, install it
        if [[ $(nvm ls "$nvm_version" | tr -d '[:space:]') == "N/A" ]]; then
            nvm install "$nvm_version";
        fi
  
        if [[ $(nvm current) != "$nvm_version" ]]; then
            nvm use "$nvm_version";
        fi
    fi
}
alias cd='cdnvm'