import { enableProdMode } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BootstrapModuleFn as Bootstrap, hmr, WebpackModule } from '@ngxs/hmr-plugin'; import { AppModule } from './app/app.module'; import { environment } from './environments/environment'; declare const module: WebpackModule; if (environment.production) { enableProdMode(); } const bootstrap: Bootstrap = () => platformBrowserDynamic().bootstrapModule(AppModule); if (environment.hmr) { hmr(module, bootstrap).catch(err => console.error(err)); } else { bootstrap().catch(err => console.log(err)); }