Updated coding styles and test configs

config/webpackDevServer.config.js

@@ -1,17 +1,17 @@
-'use strict';
 
+const fs = require('fs');
 const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
 const evalSourceMapMiddleware = require('react-dev-utils/evalSourceMapMiddleware');
 const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
 const ignoredFiles = require('react-dev-utils/ignoredFiles');
 const paths = require('./paths');
-const fs = require('fs');
 
 const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
 const host = process.env.HOST || '0.0.0.0';
 
 module.exports = function(proxy, allowedHost) {
   return {
+
     // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
     // websites from potentially accessing local content through DNS rebinding:
     // https://github.com/webpack/webpack-dev-server/issues/887
@@ -30,11 +30,14 @@ module.exports = function(proxy, allowedHost) {
     // really know what you're doing with a special environment variable.
     disableHostCheck:
       !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
+
     // Enable gzip compression of generated files.
     compress: true,
+
     // Silence WebpackDevServer's own logs since they're generally not useful.
     // It will still show compile warnings and errors with this setting.
     clientLogLevel: 'none',
+
     // By default WebpackDevServer serves physical files from current directory
     // in addition to all the virtual build products that it serves from memory.
     // This is confusing because those files won’t automatically be available in
@@ -50,20 +53,25 @@ module.exports = function(proxy, allowedHost) {
     // for some reason broken when imported through Webpack. If you just want to
     // use an image, put it in `src` and `import` it from JavaScript instead.
     contentBase: paths.appPublic,
+
     // By default files from `contentBase` will not trigger a page reload.
     watchContentBase: true,
+
     // Enable hot reloading server. It will provide /sockjs-node/ endpoint
     // for the WebpackDevServer client so it can learn when the files were
     // updated. The WebpackDevServer client is included as an entry point
     // in the Webpack development configuration. Note that only changes
     // to CSS are currently hot reloaded. JS changes will refresh the browser.
     hot: true,
+
     // It is important to tell WebpackDevServer to use the same "root" path
     // as we specified in the config. In development, we always serve from /.
     publicPath: '/',
+
     // WebpackDevServer is noisy by default so we emit custom message instead
     // by listening to the compiler events with `compiler.hooks[...].tap` calls above.
     quiet: true,
+
     // Reportedly, this avoids CPU overload on some systems.
     // https://github.com/facebook/create-react-app/issues/293
     // src/node_modules is not ignored to support absolute imports
@@ -71,11 +79,13 @@ module.exports = function(proxy, allowedHost) {
     watchOptions: {
       ignored: ignoredFiles(paths.appSrc),
     },
+
     // Enable HTTPS if the HTTPS environment variable is set to 'true'
     https: protocol === 'https',
     host,
     overlay: false,
     historyApiFallback: {
+
       // Paths with dots should still use the history fallback.
       // See https://github.com/facebook/create-react-app/issues/387.
       disableDotRule: true,
@@ -90,6 +100,7 @@ module.exports = function(proxy, allowedHost) {
 
       // This lets us fetch source contents from webpack for the error overlay
       app.use(evalSourceMapMiddleware(server));
+
       // This lets us open files from the runtime error overlay.
       app.use(errorOverlayMiddleware());