Adds closeOnTab to the type definitions

Author: arqex

react-datetime.d.ts

@@ -167,6 +167,10 @@ declare module ReactDatetime {
      Whether to use moment's strict parsing when parsing input.
      */
     strictParsing?: boolean;
+    /*
+    When true and the input is focused, pressing the tab key will close the datepicker.
+    */
+    closeOnTab?: boolean;
     /*
      When true, once the day has been selected, the react-datetime will be automatically closed.
      */