Fix issue 15: "Week calculation is wrong ... includes decimals"

According to the updated article, http://techblog.procurios.nl/k/n618/news/view/33796/14863/calculate-iso-8601-week-and-year-in-javascript.html either ceil or floor is needed. Choosing to use floor to keep the +1.
felixge · Aug 5, 2013 · 84f29cb · 84f29cb
1 parent d0a752c
commit 84f29cb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/dateformat.js b/lib/dateformat.js
@@ -46,7 +46,7 @@ var dateFormat = function () {
 
       // Number of weeks between target Thursday and first Thursday
       var weekDiff = (targetThursday - firstThursday) / (86400000*7);
-      return 1 + weekDiff;
+      return 1 + Math.floor(weekDiff);
     },
 
     /**