Change default port from 5000 to 3000 (#680)

Author: kud

bin/serve.js

@@ -63,7 +63,7 @@ const getHelp = () => chalk`
  {bold $} {cyan serve} folder_name
  {bold $} {cyan serve} [-l {underline listen_uri} [-l ...]] [{underline directory}]
 
- By default, {cyan serve} will listen on {bold 0.0.0.0:5000} and serve the
+ By default, {cyan serve} will listen on {bold 0.0.0.0:3000} and serve the
  current working directory on that address.
 
  Specifying a single {bold --listen} argument will overwrite the default, not supplement it.
@@ -152,7 +152,7 @@ const parseEndpoint = (str) => {
 
 return [url.pathname];
 case 'tcp:':
-url.port = url.port || '5000';
+url.port = url.port || '3000';
 return [parseInt(url.port, 10), url.hostname];
 default:
 throw new Error(`Unknown --listen endpoint scheme (protocol): ${url.protocol}`);
@@ -419,7 +419,7 @@ const loadConfig = async (cwd, entry, args) => {
 
 if (!args['--listen']) {
 // Default endpoint
-args['--listen'] = [[process.env.PORT || 5000]];
+args['--listen'] = [[process.env.PORT || 3000]];
 }
 
 if (args._.length > 1) {