Merge branch 'gray'

 {
   "name": "yohobuy-node",
-  "version": "5.6.12",
+  "version": "5.6.16",
   "private": true,
   "description": "A New Yohobuy Project With Express",
   "repository": {

@@ -12,6 +12,8 @@ var $ = require('yoho-jquery'), // eslint-disable-line
 var $cartnewTips = $('.cartnew-tips'),
     $cartListWrap = $('#Y_CartListWrap');
 
+require('../common/function');
+
 // 关闭温馨提示
 $cartnewTips.find('.btn-close').click(function() {
     $cartnewTips.fadeOut();

+/* eslint-disable */
+if (!Function.prototype.bind) {
+    Function.prototype.bind = function(oThis) {
+        if (typeof this !== "function") {
+            return;
+        }
+
+        var aArgs = Array.prototype.slice.call(arguments, 1),
+        fToBind = this,
+        fNOP = function() {},
+        fBound = function() {
+            return fToBind.apply(this instanceof fNOP && oThis ? this: oThis, aArgs.concat(Array.prototype.slice.call(arguments)));
+        };
+
+        fNOP.prototype = this.prototype;
+        fBound.prototype = new fNOP();
+
+        return fBound;
+    };
+}
+/* eslint-ensable */

@@ -4,14 +4,14 @@
  * @Last Modified by: Targaryen
  * @Last Modified time: 2017-05-22 16:53:18
  */
-let stringHandle = {
+var stringHandle = {
 
     /**
      * 汉字相当于两个字符的字符串长度计算
      * @param {*} str
      */
-    chinese2(str) {
-        let total = 0,
+    chinese2: function(str) {
+        var total = 0,
             charCode,
             i,
             len;
@@ -32,16 +32,16 @@ let stringHandle = {
      * @param {*} str
      * @param {*} n
      */
-    sub_chinese2(str, n) {
-        let r = /[\u4E00-\u9FA5]/g;
+    sub_chinese2: function(str, n) {
+        var r = /[\u4E00-\u9FA5]/g;
+        var m = Math.floor(n / 2);
+        var i;
 
         if (str.replace(r, 'mm').length <= n) {
             return str;
         }
 
-        let m = Math.floor(n / 2);
-
-        for (let i = m; i < str.length; i++) {
+        for (i = m; i < str.length; i++) {
             if (str.substr(0, i).replace(r, 'mm').length >= n) {
                 return str.substr(0, i);
             }