git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 var getMonth = Date.prototype.getMonth;
   4
   5 module.exports = function () {
   6         switch (getMonth.call(this)) {
   7         case 1:
   8                 return this.getFullYear() % 4 ? 28 : 29;
   9         case 3:
  10         case 5:
  11         case 8:
  12         case 10:
  13                 return 30;
  14         default:
  15                 return 31;
  16         }
  17 };