src/main.ts

import {enableProdMode} from '@angular/core'
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic'
import {AppModule} from './app/app.module'
import {environment} from './environments/environment'

if (environment.production) {
    enableProdMode()
}

platformBrowserDynamic()
    .bootstrapModule(AppModule)
    .catch(err =>
        console.error(err)
    )