n this lesson, we will set up Hot Module Reloading(HMR), making it possible to load new definitions for React components and MST models and apply them to a running application.
In this lesson you will learn:
- How HMR roughly works
- How to accept changes to components
- How to accept changes to changing model definitions, while keeping state
let wishList = WishList.create(initialState) function renderApp() { ReactDOM.render(<App wishList={wishList} />, document.getElementById("root")) } renderApp() if (module.hot) { module.hot.accept(["./components/App"], () => { // new components renderApp() }) module.hot.accept(["./models/WishList"], () => { // new model definitions const snapshot = getSnapshot(wishList) wishList = WishList.create(snapshot) renderApp() }) }
