Add eslint-config-prettier

.eslintrc.json

@@ -5,7 +5,7 @@
     "node": true,
     "jest": true
   },
-  "extends": "eslint:recommended",
+  "extends": ["eslint:recommended", "prettier"],
   "globals": {
     "Atomics": "readonly",
     "SharedArrayBuffer": "readonly"

package.json

@@ -41,6 +41,7 @@
   },
   "devDependencies": {
     "eslint": "^6.5.1",
+    "eslint-config-prettier": "^6.5.0",
     "jest": "^24.9.0",
     "prettier": "^1.18.2",
     "webpack": "^4.41.0",

public/index.html

@@ -13,16 +13,14 @@
     />
     <script>
       if (navigator.serviceWorker) {
-        navigator.serviceWorker
-          .register("service-worker.js")
-          .then(
-            (registration) =>
-              console.log(
-                `Service worker registered on scope ${registration.scope}`,
-              ),
-            (reason) =>
-              console.log(`Service worker failed to register ~ ${reason}`),
-          )
+        navigator.serviceWorker.register("service-worker.js").then(
+          (registration) =>
+            console.log(
+              `Service worker registered on scope ${registration.scope}`,
+            ),
+          (reason) =>
+            console.log(`Service worker failed to register ~ ${reason}`),
+        )
       }
     </script>
   </head>