tinyNode.js normalizePort() is not doing okay

[cubap]

var port = normalizePort(process.env.PORT || '3002');

This is checking for PORT on .env or assigning "3002". port is supposed to be a <number> so using the String '3002' is already goofy. Even if we cannot trust the .env, the || '3002' (or ??) should be outside the parenthesis.

function normalizePort(val) {
  var port = parseInt(val, 10);

  if (isNaN(port)) {
    // named pipe
    return val;
  }

  if (port >= 0) {
    // port number
    return port;
  }

  return false;
}

• Returning false here breaks .listen() which does not take false as a value.
• Detecting a named pipe also fails, since .listen() wants a number. It can fail through to a hostname or ip address, but that's not really what's happening.
• The port >= 0 check does not actually validate the port, which must be an integer between 1-65535.
• parseInt(val, 10) does not need the "10" which is already the default. It also will parse things that are not like numbers ("1Love" => 1) without errors. Number(val).toFixed() will take any number-like and give back the integer piece.
• With all this, this function is probably only one line and may be better to just omit and decide whether an error should catch to apply the default or break the app.