fix for null

12 years ago · 032b1823ad
1 changed files with 2 additions and 2 deletions
--- a/jquery.isotope.js
+++ b/jquery.isotope.js
@ -570,8 +570,8 @@
          , sortDir = this.options.sortAscending ? 1 : -1
          , len = sortBy.length
          , sortFunc = function (a, b){              
-              isNaN(a) && (a = a.toLowerCase());
+              a && isNaN(a) && (a = a.toLowerCase());
-              isNaN(b) && (b = b.toLowerCase());              
+              b && isNaN(b) && (b = b.toLowerCase());              
              return ( a > b ) ? 1 : ( a < b ) ? -1 : 0;  
            }
          ;