+const bootstrap = () => platformBrowserDynamic()
+ .bootstrapModule(AppModule)
+ .then(bootstrapModule => {
+ if (!environment.production) {
+ const applicationRef = bootstrapModule.injector.get(ApplicationRef)
+ const componentRef = applicationRef.components[0]
+
+ // allows to run `ng.profiler.timeChangeDetection();`
+ enableDebugTools(componentRef)
+ }
+
+ return bootstrapModule
+ })
+ .catch(err => {
+ console.error(err)
+ return null
+ })
+
+bootstrap()