add a groupByActionTypes helper function

TerraClear · May 10, 2017 · 2b2ad23 · 2b2ad23
1 parent d4179d0
commit 2b2ad23
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/helpers.js b/src/helpers.js
@@ -49,3 +49,8 @@ export function combineFilters (...filters) {
       curr(action, currentState, previousHistory)
   , () => true)
 }
+
+export function groupByActionTypes (rawActions) {
+  const actions = parseActions(rawActions)
+  return (action) => actions.indexOf(action.type) >= 0 ? action.type : null
+}
diff --git a/src/index.js b/src/index.js
@@ -2,7 +2,7 @@ export { ActionTypes, ActionCreators } from './actions'
 export {
   parseActions, isHistory,
   distinctState, includeAction, excludeAction,
-  combineFilters
+  combineFilters, groupByActionTypes
 } from './helpers'
 
 export { default } from './reducer'