code: function(numbers) {
      if (numbers.length < 2) {
        return moment()._locale.ordinal(numbers);
      }
  
      var last_val = numbers.pop();
      return numbers.join(', ') + ' and ' + moment()._locale.ordinal(last_val);
    }
docs: /*
  For an array of numbers, e.g. a list of hours in a schedule,
  return a string listing out all of the values (complete with
  "and" plus ordinal text on the last item).