refact(endsWith): endsWith is fast than regexp

index.js

@@ -35,16 +35,14 @@ module.exports = function (app, options) {
     var names = fs.readdirSync(localeDir);
     for (var i = 0; i < names.length; i++) {
       var name = names[i];
-      if (!/\.(?:js|json|properties)$/.test(name)) {
-        continue;
-      }
       var filepath = path.join(localeDir, name);
       // support en_US.js => en-US.js
       var locale = formatLocale(name.split('.')[0]);
-      if (/\.properties$/.test(name)) {
-        resources[locale] = ini.parse(fs.readFileSync(filepath, 'utf8'));
-      } else {
+
+      if (name.endsWith('.js') || name.endsWith('.json')) {
         resources[locale] = require(filepath);
+      } else if (name.endsWith('.properties')) {
+        resources[locale] = ini.parse(fs.readFileSync(filepath, 'utf8'));
       }
     }
   }