Chapter 2: change back to use prettier

Chapter02/file-watching/watch.js

@@ -1,6 +1,6 @@
-const fs = require('fs')
-const file = './file.txt'
+const fs = require("fs");
+const file = "./file.txt";
 
 fs.watchFile(file, (current, previous) => {
-  return console.log(`${file} updated ${time}`)
-})
+  return console.log(`${file} updated ${time}`);
+});