Merge pull request #464 from darbicus/patch-1

fix for #462

Author: Lauren McCarthy

src/data/string_functions.js

@@ -170,6 +170,9 @@ define(function (require) {
     var rem = dec !== -1 ? num.substring(dec) : '';
     var n = dec !== -1 ? num.substring(0, dec) : num;
     n = n.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+    if (arguments[1] === 0) {
+      rem = '';
+    }
     if (arguments.length > 1) {
       rem = rem.substring(0, arguments[1]+1);
     }
@@ -298,4 +301,4 @@ define(function (require) {
 
   return p5;
 
-});
+});