convert {null|*} from isValidValue function to valueType: [null, *], p…

…hetsims/axon#228
phetsims · Jul 19, 2019 · d97d005 · d97d005
1 parent ea0f963
commit d97d005
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/js/common/model/TermCreator.js b/js/common/model/TermCreator.js
@@ -97,7 +97,7 @@ define( function( require ) {
       validators: [
         { valueType: TermCreator },
         { valueType: Term },
-        { isValidValue: value => ( value instanceof Event || value === null ) } // {Event|null}
+        { valueType: [ Event, null ] }
       ]
     } );