I came up with a slightly different solution to problem 15-intersection which follows from problem 14-extends.

interfaceUserWithPostsextendsUser{posts:Post[]}

This interface also passes the type check and it creates a slightly different code completion on WebStorm (at least)

Vs the video solution using&

There is no massive difference between the 2 but I thought I'd mention it. I imagine using the& operator withtype is like using theextends withinterfaces. They do the same as far as I can tell.

Thanks a ton for the great content! :)