apply prettier on all files

app/models/index.js

@@ -1,27 +1,33 @@
-'use strict';
+"use strict";
 
-const fs = require('fs');
-const path = require('path');
-const Sequelize = require('sequelize');
+const fs = require("fs");
+const path = require("path");
+const Sequelize = require("sequelize");
 const basename = path.basename(__filename);
-const env = process.env.NODE_ENV || 'development';
-const config = require(__dirname + '/../config/config.json')[env];
+const env = process.env.NODE_ENV || "development";
+const config = require(__dirname + "/../config/config.json")[env];
 const db = {};
 
 let sequelize;
 if (config.use_env_variable) {
   sequelize = new Sequelize(process.env[config.use_env_variable], config);
 } else {
-  sequelize = new Sequelize(config.database, config.username, config.password, config);
+  sequelize = new Sequelize(
+    config.database,
+    config.username,
+    config.password,
+    config
+  );
 }
 
-fs
-  .readdirSync(__dirname)
+fs.readdirSync(__dirname)
   .filter(file => {
-    return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
+    return (
+      file.indexOf(".") !== 0 && file !== basename && file.slice(-3) === ".js"
+    );
   })
   .forEach(file => {
-    const model = sequelize['import'](path.join(__dirname, file));
+    const model = sequelize["import"](path.join(__dirname, file));
     db[model.name] = model;
   });