How to save previous component DOM in react

Question

Root.js

const Root = () => (
    <HashRouter>
        <div>
            <Route exact path="/" component={Main}/>
            <Route path="/main/:page" component={Main}/>
            <Route path="/detail/:name" component={Detail}/>
        </div>
    </HashRouter>
);
export default Root;

Main in ItemList.js

render() {
    let count = 0;
    return (
        <div>
            {this.state.data.map(function (data, i) {
                count++;
                return <Item data={data} key={count} order={count}/>;
            })}
        </div>
    );
}

Item is scroll bottom to(more view) append data( use ajax )

Item Click to Link to={item idx} and go to detail page

and back to page.. reset dom!

how to save dom?!?

Answer 1

Save the data somewhere, so when you back to index, load the data in the page. Redux map help you to do all the things. And remember react is a data-driven framework. You get the data, you have the view.