WIP

Author: yangmillstheory

src/__tests__/createAction-test.js

@@ -32,7 +32,7 @@ describe('createAction()', () => {
         })
         .to.throw(
           Error,
-          'Expected payloadCreator to be a function, undefined, or null'
+          'Expected payloadCreator to be a function, undefined or null'
         );
       });
     });

src/createAction.js

@@ -7,7 +7,7 @@ import invariant from 'invariant';
 export default function createAction(type, payloadCreator = identity, metaCreator) {
   invariant(
     isFunction(payloadCreator) || isNull(payloadCreator),
-    'Expected payloadCreator to be a function, undefined, or null'
+    'Expected payloadCreator to be a function, undefined or null'
   );
 
   const finalPayloadCreator = isNull(payloadCreator)