Adrian Spinetta's questions

I'm trying to get a good understanding of dependency injection and I see in some cases (Blazor) that it is used at the beginning of the component:

@inject MyHtmlHelper Html

In other cases with the constructor which is the most common:

   private readonly IMyHtmlHelper _html;
   public MyClaseContructor(IMyHtmlHelper html)
   {
      _html = html;
   }

and in other cases directly on a property:

   [Inject]
   public IMyHtmlHelper html {get; set;}

My doubt is if the 3 forms are the same or there are differences with the created instances. Thanks.