The collector service

We can create a service to return those hard-coded values inside the heading property. To do so, create a new TypeScript class named collector.service.ts and add the following contents to it:

// app/collector/collector.service.ts 
export class CollectorService { 
  getHeadlines(): string[] { 
    return [ 
      "Lorem ipsum dolor sit amet",  
      "consectetuer adipiscing elit",  
      "Integer tincidunt Cras dapibus", 
      "Quia dolori non voluptas " 
    ]; 
  } 
} 

Nothing special is happening here. This is an ordinary class with a simple method, which returns an array of strings. This is the simplest form of creating a class for our collector service. You may have noticed we didn't import any other modules or add any decoration to this class. We will improve it as we continue.