minor consitency change

lib/dateArray.js

@@ -123,7 +123,7 @@ function wrapper(_epochSpan) {
   }
 
   function getDaySpan(data) {
-    var dayoptionS = data["dayoption"]["0"];
+    var dayoptionS = data["dayoption"][0];
     var dayoption = parseInt(dayoptionS);
     if (dayoption < 7) return [dayoption, dayoption];
     switch (dayoption) {
@@ -161,7 +161,7 @@ function wrapper(_epochSpan) {
   }
 
   function getHolidays(data) {
-    var option = data["option"]["0"];
+    var option = data["option"][0];
     if (option != "holiday") {
       throw new Error('not holiday: ' + option);
     }
@@ -292,7 +292,7 @@ function wrapper(_epochSpan) {
     var daySpan = getDaySpan(data);
     var timeSpan = getTimeSpan(data);
     var dateSpan = getDateSpan(data);
-    var repeatOption = parseInt(data["repeatoption"]["0"]);
+    var repeatOption = parseInt(data["repeatoption"][0]);
 
     var noInMonth;
     if (repeatOption <= 4) noInMonth = repeatOption;