Nginx redirects

nginx.conf

server {
    # ...
    
    # Redirect /book and any sub-uris
    #  e.g. /book/anything
    #  e.v. /book/whatever?maybe=a_query_too
    location /book {
        return 301 http://book.serversforhackers.com;
    }

    # Redirect an exact URI via `=` operator
    location = /feed.xml {
        # Redirect to /feed URI of current scheme and host
        return 301 $scheme://$host/feed;
    }
    
    # Redirect based on regex
    location ~ ^/(some_uri|or_another_uri)$ {
        # Redirect to /the_correct_uri URI of current scheme and host
        return 301 $scheme://$host/the_correct_uri;
    }
    
    # ...
}

nginxdomain.conf

# Example of redirect www to non-www
server {
    # Enforce the use of HTTPS
    listen 80;
    server_name www.serversforhackers.com;
    # OR, capture all subdomains
    # server_name *.serversforhackers.com;
    return 301 http://serversforhackers.com$request_uri;
}

server {
    listen 80 default_server;
    server_name serversforhackers.com
}

would this work for www redirect as well or would that require a different server block?