Convert translation function to js

common/script/content/faq.js

@@ -2,7 +2,7 @@
 
 require('coffee-script');
 
-var t = require('./translation.coffee');
+var t = require('./translation.js');
 
 var faq = {};
 

common/script/content/index.coffee

@@ -2,7 +2,7 @@ api = module.exports
 
 _ = require 'lodash'
 moment = require 'moment'
-t = require './translation.coffee'
+t = require './translation.js'
 
 ###
   ---------------------------------------------------------------

common/script/content/translation.coffee

@@ -1,9 +0,0 @@
-i18n = require '../i18n.coffee'
-t = (string, vars) ->
-  func = (lang) ->
-    vars ?= {a: 'a'}
-    i18n.t(string, vars, lang)
-  func.i18nLangFunc = true #Trick to recognize this type of function
-  func
-
-module.exports = t

common/script/content/translation.js

@@ -0,0 +1,21 @@
+'use strict';
+
+require('coffee-script');
+var i18n = require('../i18n.coffee');
+
+var t = function(string, vars) {
+  var func = function(lang) {
+    if (vars == null) {
+      vars = {
+        a: 'a'
+      };
+    }
+    return i18n.t(string, vars, lang);
+  };
+
+  func.i18nLangFunc = true; // Trick to recognize this type of function
+
+  return func;
+};
+
+module.exports = t;