fix

src/interfaces/extension.ts

@@ -123,6 +123,17 @@ class Extension {
     );
   }
 
+  public static ToThaiShortDate_perfixMonthYear(value: Date) {
+    let yy = value.getFullYear() < 2400 ? value.getFullYear() + 543 : value.getFullYear();
+    return (
+      value.getDate() +
+      " เดือน " +
+      Extension.ToThaiShortMonth(value.getMonth() + 1) +
+      " พ.ศ. " +
+      yy
+    );
+  }
+
   public static sumObjectValues(array: any, propertyName: any) {
     let sum = 0;
     for (let i = 0; i < array.length; i++) {