fix

assets/collection/collection.js

@@ -1,35 +1,11 @@
 /** @module collection */
-kit.PluginManager.register('collection',function(module, exports, require, global) {
+kit.PluginManager.register('Collection',function(module, exports, require, global) {
+
+    var support = require('support');
+    var valueEx = support.valueEx;
 
-    function valueEx(value, item, key, arr) {
-        if(typeof value === 'function') {
-            return value(item, key, arr);
-        }
-        return value;
-    }
-    function uniqueId (length = 32, firstLetter = true) {
-        var idStr = '';
-        if(length < 1) return idStr;
-        if(firstLetter) {
-            length && (idStr = (Math.floor((Math.random() * 25)) + 10).toString(36));
-            if (length === 1) return idStr;
-        }
-        do {
-            idStr += (Math.floor((Math.random() * 35))).toString(36);
-        } while (idStr.length < length);
-        return (idStr);
-    }
-    function empty(val){
-        return arguments.length === 0 ||
-            val === undefined ||
-            val === null ||
-            Number.isNaN(val) === true ||
-            val === '' ||
-            val === 0 ||
-            val === false;
-    }
     function filter(value, key, arr) {
-        return !empty(value);
+        return !support.empty(value);
     }
     function getSimilarInstance(type) {
         if(type === 'object') {
@@ -38,10 +14,10 @@ kit.PluginManager.register('collection',function(module, exports, require, globa
         return new Collection([]);
     }
     /**
-     * @memberof kitCore
-     * @instance
+     * @class Collection
+     * @memberOf kit
      */
-    var Collection = function (data) {
+    var Collection = function (data = []) {
         this.data = data;
         if(data instanceof NodeList) {
             this.type = 'NodeList';
@@ -81,14 +57,14 @@ kit.PluginManager.register('collection',function(module, exports, require, globa
             this.data.push(value);
             return this;
         }
-        this.data[uniqueId(8)] = value;
+        this.data[support.uniqueId(8)] = value;
         return this;
     };
     Collection.prototype.get = function (key, defValue = undefined) {
         if(this.data.hasOwnProperty(key)) {
             return this.data[key];
         }
-        return valueEx(defValue, this.data[key], key);
+        return defValue;
     };
     Collection.prototype.has = function (key) {
         return this.data.hasOwnProperty(key);
@@ -180,6 +156,16 @@ kit.PluginManager.register('collection',function(module, exports, require, globa
         });
         return res;
     };
+    Collection.prototype.firstKey = function (callback = true) {
+        var res = undefined;
+        this.each(function (value, key, arr) {
+            if(valueEx(callback, value, key, arr)) {
+                res = key;
+                return false;
+            }
+        });
+        return res;
+    };
     Collection.prototype.last = function (callback = true) {
         var res = undefined;
         this.eachReverse(function (value, key, arr) {
@@ -190,6 +176,16 @@ kit.PluginManager.register('collection',function(module, exports, require, globa
         });
         return res;
     };
+    Collection.prototype.lastKey = function (callback = true) {
+        var res = undefined;
+        this.eachReverse(function (value, key, arr) {
+            if(valueEx(callback, value, key, arr)) {
+                res = key;
+                return false;
+            }
+        });
+        return res;
+    };
     /**
      * @return {kitCore.Collection}
      */