docusaurus/v2/lib/core/preload.js
2018-10-25 17:03:19 -07:00

25 lines
747 B
JavaScript

/**
* Copyright (c) 2017-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import {matchRoutes} from 'react-router-config';
/**
* This helps us to make sure all the async component for that particular route
* is loaded before rendering. This is to avoid loading screens on first page load
*/
export default function preload(routeConfig, providedLocation) {
const matches = matchRoutes(routeConfig, providedLocation);
return Promise.all(
matches.map(match => {
const {component} = match.route;
if (component && component.preload) {
return component.preload();
}
return undefined;
}),
);
}