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setState for set function in react hooks

I have a class component which has this operation:

const notificationPreferencesEmailListIds: Set<number> = Array.isArray(
      notificationPreferences
    )
      ? new Set(
          notificationPreferences.reduce(
            (acc: number[], item: INotificationPreference) =>
              item.isUserSignedUp ? [...acc, item.emailListId] : acc,
            []
          )
        )
      : new Set([]);

    this.state = {
      notificationPreferencesEmailListIds
    };

 public setSubscriptionStatusById({
    emailListId,
    operation,
  }: INotificationPreferencesStateSetter) {
    this.setState((prevState) => {
      prevState.notificationPreferencesEmailListIds[operation](emailListId);
      return {
        notificationPreferencesEmailListIds:
          prevState.notificationPreferencesEmailListIds,
      };
    });
  }

  private renderPreferences() {
    const { notificationPreferences } = this.props;

    return (
      <div className="preferences">
        {
          Array.isArray(notificationPreferences) &&
          notificationPreferences.map((prefrence: INotificationPreference) => (
            <NotificationPreference
              key={prefrence.emailListId}
              setParentState={this.setSubscriptionStatusById}
              hideResultText={this.hideResultText}
              {...prefrence}
            />
          ))
        }
      </div>
    );
  }

the renderPreferences() method is call child component which includes checkboxes, when we checked checkbox it call setParentState setParentState({ emailListId, operation }); operation can be "add" or "delete" according to checked state. types:

    notificationPreferencesEmailListIds: Set<number>;
    export interface INotificationPreferencesStateSetter {
    emailListId: number;
    operation: "add" | "delete";
  }

When I wan't to convert it useState like this:

  const setSubscriptionStatusById = ({ emailListId, operation }: INotificationPreferencesStateSetter) => {
    setNotificationPreferencesEmailListIds((prevState: any) => {
      prevState.notificationPreferencesEmailListIds[operation](emailListId);

      return prevState.notificationPreferencesEmailListIds;
    });
  };

it gives me error "add" or "delete" is undefined when call the child component.

How can I convert this setState to useState ?

Via Active questions tagged javascript - Stack Overflow https://ift.tt/2FdjaAW

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