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Enabling hot module replacement for angular cli project
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| // environments/environment.ts | |
| export const environment = { | |
| production: false, | |
| hmr: true | |
| }; |
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| import { NgModuleRef, ApplicationRef } from '@angular/core'; | |
| import { createNewHosts } from '@angularclass/hmr'; | |
| export const hmrBootstrap = (module: any, bootstrap: () => Promise<NgModuleRef<any>>) => { | |
| let ngModule: NgModuleRef<any>; | |
| module.hot.accept(); | |
| bootstrap().then(mod => ngModule = mod); | |
| module.hot.dispose(() => { | |
| const appRef: ApplicationRef = ngModule.injector.get(ApplicationRef); | |
| const elements = appRef.components.map(c => c.location.nativeElement); | |
| const makeVisible = createNewHosts(elements); | |
| ngModule.destroy(); | |
| makeVisible(); | |
| }); | |
| }; |
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| import { enableProdMode } from '@angular/core'; | |
| import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; | |
| import { AppModule } from './app/app.module'; | |
| import { environment } from './environments/environment'; | |
| import { hmrBootstrap } from './hmr'; | |
| if (environment.production) { | |
| enableProdMode(); | |
| } | |
| const bootstrap = () => platformBrowserDynamic().bootstrapModule(AppModule) | |
| if (environment['hmr']) { | |
| if (module['hot']) { | |
| hmrBootstrap(module, bootstrap); | |
| } else { | |
| console.error('HMR is not enabled for webpack-dev-server!'); | |
| console.log('Are you using the --hmr flag for ng serve?'); | |
| } | |
| } else { | |
| bootstrap().catch(err => console.log(err)); | |
| } |
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