diff --git a/bower.json b/bower.json
index c4771d4e..88e00a64 100644
--- a/bower.json
+++ b/bower.json
@@ -25,8 +25,7 @@
     "bootstrap-fileinput": "^4.3.3",
     "bootstrap": "^3.3.6",
     "sweetalert2": "^4.1.6",
-    "jqPaginator": "^1.2.0",
-    "lodash": "^4.17.4"
+    "jqPaginator": "^1.2.0"
   },
   "resolutions": {
     "jquery": "1.9.1 - 3"
diff --git a/gulpfile.js b/gulpfile.js
index 836178e9..d9e0d0ea 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,8 +1,8 @@
 /*
 * @Author: printempw
 * @Date:   2016-07-21 13:38:26
-* @Last Modified by:   printempw
-* @Last Modified time: 2017-01-22 20:45:06
+ * @Last Modified by: g-plane
+ * @Last Modified time: 2017-04-26 15:39:46
 */
 
 'use strict';
@@ -25,7 +25,6 @@ var srcPath  = 'resources/assets/src/';
 var distPath = 'resources/assets/dist/';
 
 var vendorScripts = [
-    'lodash/dist/lodash.min.js',
     'jquery/dist/jquery.min.js',
     'bootstrap/dist/js/bootstrap.min.js',
     'AdminLTE/dist/js/app.min.js',
diff --git a/resources/assets/src/scripts/admin.js b/resources/assets/src/scripts/admin.js
index 3290ed38..e0e83aec 100644
--- a/resources/assets/src/scripts/admin.js
+++ b/resources/assets/src/scripts/admin.js
@@ -2,7 +2,7 @@
  * @Author: printempw
  * @Date:   2016-07-22 14:02:44
  * @Last Modified by: g-plane
- * @Last Modified time: 2017-04-26 15:31:34
+ * @Last Modified time: 2017-04-26 15:37:52
  */
 
 'use strict';
@@ -321,7 +321,7 @@ function changeOwner(pid) {
         });
     });
 
-    $('.swal2-input').on('input', _.debounce(() => {
+    $('.swal2-input').on('input', debounce(() => {
         const uid = $('.swal2-input').val();
         if (uid > 0) {
             Promise.resolve($.ajax({
diff --git a/resources/assets/src/scripts/general.js b/resources/assets/src/scripts/general.js
index 6294cce3..b5e4f781 100644
--- a/resources/assets/src/scripts/general.js
+++ b/resources/assets/src/scripts/general.js
@@ -1,8 +1,8 @@
 /*
 * @Author: printempw
 * @Date:   2016-09-15 10:39:41
-* @Last Modified by:   printempw
-* @Last Modified time: 2017-01-22 18:51:51
+ * @Last Modified by: g-plane
+ * @Last Modified time: 2017-04-26 15:57:50
 */
 
 'use strict';
@@ -157,6 +157,28 @@ function getQueryString(key) {
     }
 }
 
+/**
+ * Return a debounced function
+ *
+ * @param {Function} func
+ * @param {number}   delay
+ * @param {Array}    args
+ * @param {Object}   context
+ */
+function debounce(func, delay, args = [], context = undefined) {
+    if (isNaN(delay) || typeof func !== 'function') {
+        throw new Error('Arguments type of function "debounce" is incorrent!');
+    }
+
+    let timer = null;
+    return function () {
+        clearTimeout(timer);
+        timer = setTimeout(() => {
+            func.apply(context, args);
+        }, delay);
+    }
+}
+
 // polyfill of String.prototype.endsWith
 if (!String.prototype.endsWith) {
     String.prototype.endsWith = function (searchString, position) {
diff --git a/resources/assets/src/scripts/user.js b/resources/assets/src/scripts/user.js
index 545873d2..90c3bd81 100644
--- a/resources/assets/src/scripts/user.js
+++ b/resources/assets/src/scripts/user.js
@@ -1,8 +1,8 @@
 /*
  * @Author: printempw
  * @Date:   2016-07-16 10:02:24
- * @Last Modified by:   printempw
- * @Last Modified time: 2017-01-20 21:19:07
+ * @Last Modified by: g-plane
+ * @Last Modified time: 2017-04-26 15:53:54
  */
 
 'use strict';
@@ -278,7 +278,7 @@ $(document).ready(function() {
             });
         }).catch(error => showAjaxError);
 
-        $('input[name=q]').on('input', _.debounce(() => {
+        $('input[name=q]').on('input', debounce(() => {
             const category = $('#skin-category').hasClass('active') ? 'skin' : 'cape';
             reloadCloset(
                 category,