config prettier

src/example.js

@@ -1,11 +1,11 @@
-const name = "Freddy";
-typeof name === "string";
+const name = 'Freddy'
+typeof name === 'string'
 
-if (!("serviceWorker" in navigator)) {
+if (!('serviceWorker' in navigator)) {
   // you have an old browser :-(
 }
 
-const greeting = "hello";
-console.log(`${greeting} world!`);
+const greeting = 'hello'
+console.log(`${greeting} world!`)
 
-[(1, 2, 3)].forEach(x => console.log(x));
+;[(1, 2, 3)].forEach(x => console.log(x))