add rest-spead operator to babel

package.json

@@ -29,6 +29,7 @@
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "css-loader": "^0.28.7",
     "eslint": "^4.10.0",

webpack.config.js

@@ -49,7 +49,10 @@ const config = {
         exclude: /node_modules/,
         use: [{
           loader: 'babel-loader',
-          options: { presets: ['env'] },
+          options: {
+            presets: ['env'],
+            plugins: ['transform-object-rest-spread'],
+          },
         }],
       },
       {