Package detail

React Redux Undo

A simple reducer enhancer (or a higher order reducer) that allows you to undo/redo changes in the state.

Install

npm install react-redux-undo

Who to use

import { createStore } from "redux";
import { ActionCreators, applyUndo } from "react-redux-undo";

const store = createStore(applyUndo(reducer));

function App() {
  return (
    <Provider store={store}>
      <Count />
    </Provider>
  );
}

function Count() {
  const counter = useSelector((state) => state.counter);
  const dispatch = useDispatch();

  return (
    <div>
      <h1>Counter {counter}</h1>
      <button onClick={() => dispatch({ type: "ADD" })}>ADD COUNTER</button>
      <hr />
      <button onClick={() => dispatch(ActionCreators.undo())}>UNDO</button>
      <button onClick={() => dispatch(ActionCreators.clear())}>CLEAR</button>
      <button onClick={() => dispatch(ActionCreators.redo())}>UNDO</button>
    </div>
  );
}

Passing custom props

Defines a maximum size of the history stack

undoMiddleware({ maxHistory: 10 });

Example

Check an example

License

MIT