Normalize and enforce single quotes in scripts

- Add quotes and semi rules to ESLint
- Fix quotes and semicolons

.eslintrc.js

@@ -1,47 +1,49 @@
 module.exports = {
-  "root": true,
-  "extends": "eslint:recommended",
-  "globals": {
-    "wp": true
+  'root': true,
+  'extends': 'eslint:recommended',
+  'globals': {
+    'wp': true,
   },
-  "env": {
-    "node": true,
-    "es6": true,
-    "amd": true,
-    "browser": true,
-    "jquery": true
+  'env': {
+    'node': true,
+    'es6': true,
+    'amd': true,
+    'browser': true,
+    'jquery': true,
   },
-  "parserOptions": {
-    "ecmaFeatures": {
-      "globalReturn": true,
-      "generators": false,
-      "objectLiteralDuplicateProperties": false,
-      "experimentalObjectRestSpread": true
+  'parserOptions': {
+    'ecmaFeatures': {
+      'globalReturn': true,
+      'generators': false,
+      'objectLiteralDuplicateProperties': false,
+      'experimentalObjectRestSpread': true,
     },
-    "ecmaVersion": 2017,
-    "sourceType": "module"
+    'ecmaVersion': 2017,
+    'sourceType': 'module',
   },
-  "plugins": [
-    "import"
+  'plugins': [
+    'import',
   ],
-  "settings": {
-    "import/core-modules": [],
-    "import/ignore": [
-      "node_modules",
-      "\\.(coffee|scss|css|less|hbs|svg|json)$"
-    ]
+  'settings': {
+    'import/core-modules': [],
+    'import/ignore': [
+      'node_modules',
+      '\\.(coffee|scss|css|less|hbs|svg|json)$',
+    ],
   },
-  "rules": {
-    "no-console": process.env.NODE_ENV === 'production' ? 2 : 0,
-    "comma-dangle": [
-      "error",
+  'rules': {
+    'no-console': process.env.NODE_ENV === 'production' ? 2 : 0,
+    'quotes': ['error', 'single'],
+    'semi': 'error',
+    'comma-dangle': [
+      'error',
       {
-        "arrays": "always-multiline",
-        "objects": "always-multiline",
-        "imports": "always-multiline",
-        "exports": "always-multiline",
-        "functions": "ignore"
-      }
-    ]
-  }
-}
+        'arrays': 'always-multiline',
+        'objects': 'always-multiline',
+        'imports': 'always-multiline',
+        'exports': 'always-multiline',
+        'functions': 'ignore',
+      },
+    ],
+  },
+};

resources/assets/scripts/main.js

@@ -2,7 +2,7 @@
 import 'jquery';
 
 // Import everything from autoload
-import "./autoload/**/*"
+import './autoload/**/*';
 
 // import local dependencies
 import Router from './util/Router';

resources/assets/scripts/util/Router.js

@@ -60,4 +60,4 @@ class Router {
   }
 }
 
-export default Router
+export default Router;