/
index.js
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/
index.js
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import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter, matchPath } from 'react-router-dom';
import { Provider } from 'react-redux';
import './index.scss';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import configure from 'store/configure';
import routeConfig from 'routeConfig';
const store = configure(window.__PRELOADED_STATE__);
const renderAfterPreload = async () => {
if (process.env.NODE_ENV === 'production') {
const promises = []; // 기다릴 프로미스를 담을 배열
routeConfig.forEach(route => {
const match = matchPath(window.location.pathname, route);
// preloadComponent 함수가 존재한다면
if (match && route.component.preloadComponent) {
const p = route.component.preloadComponent();
promises.push(p);
}
});
try {
await Promise.all(promises); // 다 끝날 때 까지 대기
} catch (e) {
console.log(e);
}
}
ReactDOM.render(
<Provider store={store}>
<BrowserRouter>
<App />
</BrowserRouter>
</Provider>,
document.getElementById('root')
);
}
renderAfterPreload();
// registerServiceWorker();