diff --git a/lib/list.js b/lib/list.js
index c6c95b26..a7e741ca 100644
--- a/lib/list.js
+++ b/lib/list.js
@@ -1,6 +1,14 @@
 
 module.exports = List;
 
+/**
+ * List class provides functionality of nested collection
+ *
+ * @param {Array} data - array of items.
+ * @param {Crap} type - array with some type information? TODO: rework this API.
+ * @param {AbstractClass} parent - owner of list.
+ * @constructor
+ */
 function List(data, type, parent) {
     var list = this;
 
@@ -24,13 +32,13 @@ function List(data, type, parent) {
         list.ItemType = type[0] || ListItem;
     }
 
-    data.forEach(function (item, i) {
+    data.forEach(function(item, i) {
         data[i] = new Item(item, list);
         Object.defineProperty(list, data[i].id, {
             writable: true,
             enumerable: false,
             configurable: true,
-            value:  data[i]
+            value: data[i]
         });
         if (list.nextid <= data[i].id) {
             list.nextid = data[i].id + 1;
@@ -40,7 +48,7 @@ function List(data, type, parent) {
     Object.defineProperty(list, 'length', {
         enumerable: false,
         configurable: true,
-        get: function () {
+        get: function() {
             return list.items.length;
         }
     });
@@ -97,8 +105,8 @@ if (_) {
         'range'
     ];
 
-    _import.forEach(function (name) {
-        List.prototype[name] = function () {
+    _import.forEach(function(name) {
+        List.prototype[name] = function() {
             var args = [].slice.call(arguments);
             args.unshift(this.items);
             return _[name].apply(_, args);
@@ -106,32 +114,32 @@ if (_) {
     });
 }
 
-List.prototype.toObject = function () {
+List.prototype.toObject = function() {
     return this.items;
 };
 
-List.prototype.toJSON = function () {
+List.prototype.toJSON = function() {
     return this.items;
 };
 
-List.prototype.toString = function () {
+List.prototype.toString = function() {
     return JSON.stringify(this.items);
 };
 
-List.prototype.autoincrement = function () {
+List.prototype.autoincrement = function() {
     return this.nextid++;
 };
 
-List.prototype.push = function (obj) {
+List.prototype.push = function(obj) {
     var item = new ListItem(obj, this);
     this.items.push(item);
     return item;
 };
 
-List.prototype.remove = function (obj) {
+List.prototype.remove = function(obj) {
     var id = obj.id ? obj.id : obj;
     var found = false;
-    this.items.forEach(function (o, i) {
+    this.items.forEach(function(o, i) {
         if (id && o.id == id) {
             found = i;
             if (o.id !== id) {
@@ -145,17 +153,17 @@ List.prototype.remove = function (obj) {
     }
 };
 
-List.prototype.forEach = function (cb) {
+List.prototype.forEach = function(cb) {
     this.items.forEach(cb);
 };
 
-List.prototype.sort = function (cb) {
+List.prototype.sort = function(cb) {
     return this.items.sort(cb);
 };
 
-List.prototype.map = function (cb) {
+List.prototype.map = function(cb) {
     if (typeof cb === 'function') return this.items.map(cb);
-    if (typeof cb === 'string') return this.items.map(function (el) {
+    if (typeof cb === 'string') return this.items.map(function(el) {
         if (typeof el[cb] === 'function') return el[cb]();
         if (el.hasOwnProperty(cb)) return el[cb];
     });
@@ -179,7 +187,7 @@ function ListItem(data, parent) {
         }
     }
 
-    this.save = function (c) {
+    this.save = function(c) {
         parent.parent.save(c);
     };
 }