I am working on an angular2 project, I have a file in assets folder and I have created a button to download the file while running the app. 

I see there are quite a many solutions to the above problem so i got confused. Can you please help.

```xml
<button pButton type="button" (click)="f1()" label="Download Sample Defaults 
XML File"></button>

```

I need code for f1() which can help me download the file to my Download folder when clicking on above button. Help appreciated. Thanks