Providers Array

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
  ],
  providers: [{ provide: SOME_OBJECT, useValue: { key: 'value' }],
  bootstrap: [AppComponent]
})
export class AppModule { }