refactor: code

Author: snitin315

lib/Server.js

@@ -171,6 +171,8 @@ class Server {
   }
 
   setupProxyFeature() {
+    const { createProxyMiddleware } = require('http-proxy-middleware');
+
     /**
      * Assume a proxy configuration specified as:
      * proxy: {
@@ -243,8 +245,6 @@ class Server {
       // It is possible to use the `bypass` method without a `target`.
       // However, the proxy middleware has no use in this case, and will fail to instantiate.
       if (proxyConfig.target) {
-        const { createProxyMiddleware } = require('http-proxy-middleware');
-
         return createProxyMiddleware(context, proxyConfig);
       }
     };
@@ -341,11 +341,11 @@ class Server {
   }
 
   setupStaticServeIndexFeature() {
+    const serveIndex = require('serve-index');
+
     this.options.static.forEach((staticOption) => {
       staticOption.publicPath.forEach((publicPath) => {
         if (staticOption.serveIndex) {
-          const serveIndex = require('serve-index');
-
           this.app.use(publicPath, (req, res, next) => {
             // serve-index doesn't fallthrough non-get/head request to next middleware
             if (req.method !== 'GET' && req.method !== 'HEAD') {