George Zahariev

Yes, it's definitely a use case that needs to be simplified

yes, I think a `concat` filter is a good idea

Yes I would prefer some sort of tests included with this. Edit: Also in general I've tried to make all prelude.ls functions pure functions, so I'm note sure about this

The general problem is that type refinements happen when we're looking at the AST. At this point, we don't actually know the type of anything, so we don't know what...

@dsainati1 I think a lot of these cases could be handled by updating our lib defs to use object types instead of classes. E.g. There is not reason why `JSON`...

There is no way to disable it globally (nor can there be, it is required to safely type `this` in general). What are you using for your unit test framework?...

OK, thanks for the use-cases. We have the same issue as well, with `method-unbinding` and mocking of methods in Jest. You can just suppress the errors for now (`// $FlowFixMe[method-unbinding]`...

Fixed for number keys in 80ca16f77ba81a3475dd1f7a9f4d9d9e3d71bca8 (all but example `e` in initial example).

Not at the moment, no. This could be a future feature.

Hmm, there is currently no `Map` like type available. This is a good feature request. You can do an array of tuples, but this is probably too verbose. You should...