title: TypeScript string interpolation not working in Angular project service file
body: <p>Following is code for an Angular project service:</p>
  
  <pre><code>@Injectable()
  export class FetchDataService {
    fetch(link){
      console.log('this is a ${link}');
    }
  }
  </code></pre>
  
  <p>I'm calling this method in the component passing a string as an arguement.</p>
  
  <p>Console Output:
  the link is ${link}</p>