fix chart es6

@@ -12,7 +12,7 @@ var $ = require('yoho-jquery'), // eslint-disable-line
 var $cartnewTips = $('.cartnew-tips'),
     $cartListWrap = $('#Y_CartListWrap');
 
-require('../common/function')
+require('../common/function');
 
 // 关闭温馨提示
 $cartnewTips.find('.btn-close').click(function() {

@@ -10,7 +10,7 @@ let stringHandle = {
      * 汉字相当于两个字符的字符串长度计算
      * @param {*} str
      */
-    chinese2(str) {
+    chinese2: function(str) {
         let total = 0,
             charCode,
             i,
@@ -26,13 +26,12 @@ let stringHandle = {
         }
         return total;
     },
-
     /**
      * 中文相当于两个字符情况下的字符串截取
      * @param {*} str
      * @param {*} n
      */
-    sub_chinese2(str, n) {
+    sub_chinese2: function(str, n) {
         let r = /[\u4E00-\u9FA5]/g;
 
         if (str.replace(r, 'mm').length <= n) {