Function getUndefinedStateErrorMessage

code/redux/public/app.js:21244–21249

(key, action)

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function getUndefinedStateErrorMessage(key, action) {
  var actionType = action && action.type;
  var actionName = actionType && '"' + actionType.toString() + '"' || 'an action';

  return 'Given action ' + actionName + ', reducer "' + key + '" returned undefined. ' + 'To ignore an action, you must explicitly return the previous state. ' + 'If you want this reducer to hold no value, you can return null instead of undefined.';
}

function getUnexpectedStateShapeWarningMessage(inputState, reducers, action, unexpectedKeyCache) {
  var reducerKeys = Object.keys(reducers);