Custom map function

lib/webPanel.js

@@ -9,6 +9,24 @@
         fs          = require('fs');
 
 
+    /**
+     * map
+     *
+     * Custom map function
+     * That filter undefined and null values
+     * 
+     * @param  {Array}    arr
+     * @param  {Function} callback
+     * @return {Array}
+     */
+    var map = function (arr, callback) {
+        
+        var result = arr.map(callback);
+        return result.filter(function (item) {
+            return item !== undefined && item !== null;
+        });
+    };
+
     /**
      * initWebPanel
      *
@@ -85,7 +103,7 @@
          * @return {Array}  logs folder in use
          */
         var getLogFolders = function () {
-            return consoles.map(function (elem) {
+            return map(consoles, function (elem) {
                 return elem.logWriter.rootPath || undefined; 
             });
         };
@@ -176,7 +194,7 @@
                 dates.forEach(function (date) {
                     result.push({
                         date  : date,
-                        files : logWriter.history.dates[date].map(function (item) {
+                        files : map(logWriter.history.dates[date], function (item) {
                             return {
                                 name : path.basename(item),
                                 path : item