21 خطوط
860 B
TypeScript
21 خطوط
860 B
TypeScript
// Convenience function to load polyfills and return a promise when it's done.
|
|
// If there are no polyfills, then this is just Promise.resolve() which means
|
|
// it will execute in the same tick of the event loop (i.e. near-instant).
|
|
|
|
import { loadIntlPolyfills } from './intl';
|
|
|
|
function importExtraPolyfills() {
|
|
return import(/* webpackChunkName: "extra_polyfills" */ './extra_polyfills');
|
|
}
|
|
|
|
export function loadPolyfills() {
|
|
// Safari does not have requestIdleCallback.
|
|
// This avoids shipping them all the polyfills.
|
|
const needsExtraPolyfills = !window.requestIdleCallback;
|
|
|
|
return Promise.all([
|
|
loadIntlPolyfills(),
|
|
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- those properties might not exist in old browsers, even if they are always here in types
|
|
needsExtraPolyfills && importExtraPolyfills(),
|
|
]);
|
|
}
|